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DFS & BFS & Dijkstra problems
Problem Name Online Judge Year Contest Difficulty Level
1 Cleaning Robot Categories SPOJ 1
2 Network Categories UVA 1
3 Prime Path Categories SPOJ 1
4 Eniya Categories Timus 1
5 MPI Maelstrom Categories UVA 1
6 Number Maze Categories UVA 1
7 Tic-Tac-Toe ( I ) Categories SPOJ 1
8 Dungeon Master Categories UVA 1
9 Maze Categories Codeforces Codeforces Round #222 (Div. 1) & Codeforces Round #222 (Div. 2) 1
10 Two Buttons Categories Codeforces Codeforces Round #295 (Div. 2) 1
11 Battleships Categories UVA 1
12 Learning Languages Categories Codeforces Codeforces Round #170 (Div. 1) & Codeforces Round #170 (Div. 2) 1
13 Robot Motion Categories UVA 1
14 New Year Transportation Categories Codeforces Good Bye 2014 1
15 Easy Dijkstra Problem Categories SPOJ 1
16 Key Task Categories SPOJ 1
17 Dijkstra? Categories Codeforces Codeforces Alpha Round #20 (Codeforces format) 1
18 Slick Categories SPOJ 1
19 Marcus Categories UVA 1
20 Party Categories Codeforces Codeforces Beta Round #87 (Div. 1 Only) & Codeforces Beta Round #87 (Div. 2 Only) 1
21 All Roads Lead Where? Categories UVA 1
22 Lazy Jumping Frog Categories Live Archive 2006 Latin America - South America 1
23 Bitmap Categories SPOJ 1
24 Two Gangsters Categories Timus 1
25 Pouring water Categories SPOJ 1
26 Lost in Localization Categories Timus 1
27 Testing the CATCHER Categories UVA 1
28 Page Hopping Categories UVA 1
29 Following Orders Categories UVA 1
30 Making Jumps Categories SPOJ 1
31 Oil Deposits Categories UVA 1
32 Friends Categories UVA 1
33 Marble Game Categories Live Archive 2007 World Finals - Tokyo 1
34 Sending email Categories UVA 1
35 DZY Loves Chessboard Categories Codeforces Codeforces Round #254 (Div. 2) 1
36 Water among Cubes Categories SPOJ 1
37 Sticker Collector Robot Categories UVA 1
38 Bicycle Codes Categories Timus 1
39 Intrepid climber Categories Live Archive 2014 Latin America 1
40 You want what filled? Categories UVA 1
41 Longest path in a tree Categories SPOJ 1
42 Chef and Digit Jumps Categories CodeChef 1
43 Spreading The News Categories UVA 1
44 Chop Ahoy! Revisited! Categories SPOJ 1
45 Nadia Team Categories A2 Online Judge 1
46 Sheep Categories SPOJ 1
47 The Benefactor Categories SPOJ 1
48 Knight Moves Categories UVA 1
49 Ones and zeros Categories SPOJ 1
50 NP-Hard Problem Categories Codeforces Codeforces Round #360 (Div. 1) & Codeforces Round #360 (Div. 2) 1
51 Labyrinth Categories SPOJ 1
52 The Shortest Path Categories SPOJ 1
53 A Node Too Far Categories UVA 1
54 Pizzas Categories A2 Online Judge 1
55 Soldier and Cards Categories Codeforces Codeforces Round #304 (Div. 2) 1
56 Ice Skating Categories Codeforces Codeforces Round #134 (Div. 1) & Codeforces Round #134 (Div. 2) 1
57 Roads Categories SPOJ 1
58 Mutant Flatworld Explorers Categories UVA 1
59 ABC Path Categories SPOJ 1
60 Traffic Network Categories SPOJ 1
61 ALL IZZ WELL Categories SPOJ 1
62 Herding Categories SPOJ 1
63 The Cats and the Mouse Categories SPOJ 1
64 A+B Problem Categories Timus 1
65 Cobbled streets Categories SPOJ 1
66 Is it a tree Categories SPOJ 1
67 Laser Phones Categories SPOJ 1
68 Continents Categories UVA 1
69 Til the Cows Come Home Categories PKU 1
70 We Ship Cheap Categories UVA 1
71 Wetlands of Florida Categories UVA 1
72 COSTLY CHESS Categories SPOJ 1
73 106 miles to Chicago Categories SPOJ 1
74 Theatre Square Categories Codeforces Codeforces Beta Round #1 1
75 Invitation Cards Categories SPOJ 1
76 Kefa and Park Categories Codeforces Codeforces Round #321 (Div. 2) 1
77 Shopping Categories SPOJ 1
78 Graph Connectivity Categories UVA 1
79 A Bug’s Life Categories SPOJ 1
80 Bombs! NO they are Mines!! Categories UVA 1
81 Rank the Languages Categories UVA 1
82 Lucius Dungeon Categories SPOJ 1
83 Reverse Root Categories Timus 1
84 Fishmonger Categories SPOJ 1
85 Shortest path of the king Categories Codeforces Codeforces Beta Round #3 1
86 Vertex Cover Categories SPOJ 1
87 Mice and Maze Categories SPOJ 1
88 Tic-Tac-Toe ( II ) Categories SPOJ 1
89 Risk Categories UVA 1
90 VALIDATE THE MAZE Categories SPOJ 1
91 Vertex Categories UVA 1
92 Minimum Knight moves !!! Categories SPOJ 1
93 Queue at the School Categories Codeforces Codeforces Round #163 (Div. 2) 1
94 Unique Path Categories Live Archive 2012 Asia - Jakarta 1
95 Freckles Categories UVA 1
96 Almost Shortest Path Categories SPOJ 1
97 Brackets Categories SPOJ 1
98 Highways Categories SPOJ 1
99 Word Transformation Categories UVA 1
100 Word Capitalization Categories Codeforces Codeforces Round #172 (Div. 2) 1
101 The Seasonal War Categories UVA 1
102 prayatna PR Categories SPOJ 1
103 Lift Hopping Categories UVA 1
104 Playing with Wheels Categories UVA 1
105 Labyrinth Categories TJU 1
106 BerSU Ball Categories Codeforces Codeforces Round #277.5 (Div. 2) 1
107 MELE3 Categories SPOJ 2
108 The Alphabet Sticker Categories A2 Online Judge 2
109 Cyclic Components Categories Codeforces Codeforces Round #479 (Div. 3) 2
110 Equidivisions Categories SPOJ 2
111 Jugs Categories UVA 2
112 Meeting For Party Categories SPOJ 2
113 Valera and Tubes Categories Codeforces Codeforces Round #252 (Div. 2) 2
114 Grid Colouring Categories UVA 2
115 KATHTHI Categories SPOJ 2
116 Erdos Numbers Categories UVA 2
117 GONDOR Categories SPOJ 2
118 Meeting Prof. Miguel... Categories UVA 2
119 Fire! Categories UVA 2
120 Finding Nemo Categories Live Archive 2004 Asia - Beijing 2
121 Fill Categories UVA 2
122 Maxim and Progressions Categories CodeChef 2
123 The Great Coach, Fegla Categories A2 Online Judge 2
124 Bear and Three Musketeers Categories Codeforces Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) 2
125 Timofey and a tree Categories Codeforces Codeforces Round #395 (Div. 1) & Codeforces Round #395 (Div. 2) 2
126 Lucky Numbers Categories SPOJ 2
127 Shipping Routes Categories UVA 2
128 Searching the Graph Categories SPOJ Poland 2
129 Forwarding Emails Categories UVA 2
130 DFSr - Depth Hierarchy Categories URI 2
131 Reposts Categories Codeforces VK Cup 2015 - Qualification Round 1 2
132 New Year Permutation Categories Codeforces Good Bye 2014 2
133 Journey Categories Codeforces Codeforces Round #428 (Div. 2) 2
134 Risk Categories TJU 2
135 Knights in FEN Categories UVA 2
136 Dominator Categories UVA 2
137 Babel Categories UVA 2
138 Escape from Jail Categories SPOJ 2
139 Tennis Championship Categories Codeforces Codeforces Round #382 (Div. 2) & Codeforces Round #382 (Div. 1) 2
140 Changing Maze Categories SPOJ 2
141 Checkposts Categories Codeforces Codeforces Round #244 (Div. 2) 2
142 Come and Go Categories UVA 2
143 Maze Traversal Categories UVA 2
144 The Party, Part I Categories UVA 2
145 A DP Problem Categories Live Archive 2003 Asia - Tehran 2
146 DZY Loves Chemistry Categories Codeforces Codeforces Round #254 (Div. 2) 2
147 Runner Pawns Categories Live Archive 2003 Latin America - South America 2
148 Dungeon Master Categories TJU 2
149 Game Show Math Categories UVA 2
150 Manhattan Categories SPOJ 2
151 Fire Station Categories UVA 2
152 Interesting number Categories SPOJ 2
153 Step out of maze Categories TJU 2
154 Unlock the Lock Categories UVA 2
155 Xor-tree Categories Codeforces Codeforces Round #245 (Div. 1) & Codeforces Round #245 (Div. 2) 2
156 Claw Decomposition Categories UVA 2
157 Dominos 2 Categories UVA 2
158 Chef and Reversing Categories CodeChef 2
159 The longest athletic track Categories TJU 2
160 Dijkstra Categories SPOJ Poland 2
161 Commandos Categories UVA 2
162 The Prime conjecture Categories SPOJ 2
163 Fox And Two Dots Categories Codeforces Codeforces Round #290 (Div. 2) 2
164 Andryusha and Colored Balloons Categories Codeforces ?????????? 2017 - ????? (?????? ??? ??????-??????????) 2
165 Treeramids Categories SPOJ 2
166 Mice and Maze Categories UVA 2
167 Mr. Kitayuta's Colorful Graph Categories Codeforces Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) 2
168 Strongly Connected City Categories Codeforces Bayan 2015 Contest Warm Up 2
169 The Two Routes Categories Codeforces Codeforces Round #333 (Div. 1) & Codeforces Round #333 (Div. 2) 2
170 Robot Categories UVA 2
171 Mr. Kitayuta's Colorful Graph Categories Codeforces Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) 2
172 Slash Maze Categories UVA 2
173 Counting Cells in a Blob Categories UVA 2
174 Fox And Names Categories Codeforces Codeforces Round #290 (Div. 2) & Codeforces Round #290 (Div. 1) 2
175 Brackets II Categories SPOJ 2
176 Fox Dividing Cheese Categories Codeforces Codeforces Round #218 (Div. 2) 3
177 Mysterious Present Categories Codeforces Codeforces Beta Round #4 (Div. 2 Only) 3
178 Alyona and the Tree Categories Codeforces Codeforces Round #358 (Div. 2) 3
179 Xenia and Weights Categories Codeforces Codeforces Round #197 (Div. 2) 3
180 New Reform Categories Codeforces Codeforces Round #346 (Div. 2) 3
181 Arpa's loud Owf and Mehrdad's evil plan Categories Codeforces Codeforces Round #383 (Div. 1) & Codeforces Round #383 (Div. 2) 3
182 Basic wall maze Categories UVA 3
183 Distance in Tree Categories Codeforces VK Cup 2012 Round 1 3
184 Mike and Shortcuts Categories Codeforces Codeforces Round #361 (Div. 2) 3
185 The Tree Root Categories UVA 3
186 Wandering Queen Categories SPOJ 3
187 Mr. Kitayuta, the Treasure Hunter Categories Codeforces Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) 3
188 Almost Union-Find Categories UVA 3
189 Hotel booking Categories UVA 3
190 Unbearable Controversy of Being Categories Codeforces Codeforces Round #277.5 (Div. 2) 3
191 The PATH Categories UVA 3
192 Cijevi Categories SPOJ 3
193 Strings Categories SPOJ 3
194 Amazing Maze Categories SPOJ 3
195 Wedding of Sultan Categories UVA 3
196 Countdown Categories SPOJ 3
197 THE WEIRD STAIRCASE Categories SPOJ 3
198 Galou is back! Categories SPOJ 3
199 New to Bangladesh? Categories UVA 3
200 Cleaner Robot Categories Codeforces 2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) 3
201 Code Categories SPOJ 3
202 Closest Number Categories SPOJ 3
203 Biridian Forest Categories Codeforces Codeforces Round #192 (Div. 1) & Codeforces Round #192 (Div. 2) 3
204 Coach Categories Codeforces Codeforces Round #181 (Div. 2) 3
205 Mall Mania Categories UVA 3
206 Igor In the Museum Categories Codeforces Educational Codeforces Round 1 3
207 Eternal Truths Categories UVA 3
208 Om Nom and Dark Park Categories Codeforces ZeptoLab Code Rush 2015 3
209 Walk Through the Forest Categories UVA 3
210 The Orc Attack Categories UVA 3
211 From Dusk Till Dawn Categories UVA 3
212 Airport Express Categories UVA 3
213 Highest Paid Toll Categories UVA 3
214 Bear and Compressing Categories Codeforces IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) 3
215 Tobo or not Tobo Categories SPOJ 3
216 Tree Reconstruction Categories UVA 3
217 The New Villa Categories UVA 3
218 Travel in Desert Categories UVA 3
219 Path of the righteous man Categories SPOJ 3
220 The mysterious X network Categories UVA 3
221 Gargari and Permutations Categories Codeforces Codeforces Round #264 (Div. 2) 3
222 Valera and Elections Categories Codeforces Codeforces Round #216 (Div. 2) 3
223 Adventure of Super Mario Categories UVA 3
224 Ice Cave Categories Codeforces Codeforces Round #301 (Div. 2) 3
225 Checkers Categories UVA 3
226 Full Tank? Categories UVA 3
227 Arpa's weak amphitheater and Mehrdad's valuable Hoses Categories Codeforces Codeforces Round #383 (Div. 1) & Codeforces Round #383 (Div. 2) 3
228 Chase Categories SPOJ 3
229 Subway Categories UVA 3
230 Students and Shoelaces Categories Codeforces Codeforces Beta Round #94 (Div. 2 Only) 3
231 Railroads Categories UVA 3
232 Rough Roads Categories UVA 3
233 Choosing Capital for Treeland Categories Codeforces Codeforces Round #135 (Div. 2) 3
234 Monkeys in a Regular Forest Categories UVA 3
235 Cthulhu Categories Codeforces Codeforces Beta Round #80 (Div. 1 Only) & Codeforces Beta Round #80 (Div. 2 Only) 3
236 Fire! Fire!! Fire!!! Categories UVA 3
237 Ping-Pong (Easy Version) Categories Codeforces Codeforces Round #189 (Div. 2) 3
238 Colorful Graph Categories Codeforces Codeforces Round #151 (Div. 2) 3
239 A short vacation in Disneyland Categories SPOJ 3
240 Greg and Graph Categories Codeforces Codeforces Round #179 (Div. 1) & Codeforces Round #179 (Div. 2) 3
241 Hongcow Builds A Nation Categories Codeforces Codeforces Round #385 (Div. 1) & Codeforces Round #385 (Div. 2) 3
242 Ilya And The Tree Categories Codeforces Codeforces Round #430 (Div. 2) 4
243 Subway Categories Codeforces Codeforces Beta Round #95 (Div. 2) 4
244 Minefield Categories UVA 4
245 King's Path Categories Codeforces Codeforces Round #149 (Div. 2) 4
246 Restore Graph Categories Codeforces Codeforces Round #237 (Div. 2) 4
247 Fools and Roads Categories Codeforces Codeforces Round #121 (Div. 1) & Codeforces Round #121 (Div. 2) 4
248 Round and Round Maze Categories UVA 4
249 Jzzhu and Cities Categories Codeforces Codeforces Round #257 (Div. 1) & Codeforces Round #257 (Div. 2) 4
250 Civilization Categories Codeforces Codeforces Round #260 (Div. 1) & Codeforces Round #260 (Div. 2) 4
251 Krochanska is Here! Categories UVA 4
252 Destroying Roads Categories Codeforces Codeforces Round #302 (Div. 1) & Codeforces Round #302 (Div. 2) 4
253 A DP Problem Categories UVA 4
254 Forming Teams Categories Codeforces Codeforces Round #133 (Div. 2) 4
255 Quantity of Strings Categories Codeforces Codeforces Round #107 (Div. 1) & Codeforces Round #107 (Div. 2) 4
256 Alyona and a tree Categories Codeforces Codeforces Round #381 (Div. 1) & Codeforces Round #381 (Div. 2) 4
257 Fox And Jumping Categories Codeforces Codeforces Round #290 (Div. 2) & Codeforces Round #290 (Div. 1) 4
258 Planets Categories Codeforces Codeforces Round #142 (Div. 1) & Codeforces Round #142 (Div. 2) 4
259 Cheapest way Categories UVA 4
260 Always Late Categories UVA 4
261 Tree Requests Categories Codeforces Codeforces Round #316 (Div. 2) 4
262 Ocean Currents Categories UVA 4
263 Serial Time! Categories Codeforces Codeforces Beta Round #56 4
264 Appleman and Tree Categories Codeforces Codeforces Round #263 (Div. 1) & Codeforces Round #263 (Div. 2) 4
265 Go Game Categories TJU 4
266 Two Sets Categories Codeforces Codeforces Round #268 (Div. 1) & Codeforces Round #268 (Div. 2) 4
267 Zero Tree Categories Codeforces Codeforces Round #168 (Div. 1) & Codeforces Round #168 (Div. 2) 4
268 Dorm Water Supply Categories Codeforces Codeforces Beta Round #83 (Div. 1 Only) & Codeforces Beta Round #83 (Div. 2 Only) 4
269 Propagating tree Categories Codeforces Codeforces Round #225 (Div. 1) & Codeforces Round #225 (Div. 2) 4
270 Roads in Berland Categories Codeforces Codeforces Beta Round #25 (Div. 2 Only) 4
271 New Year Santa Network Categories Codeforces Good Bye 2014 4
272 Cactus Categories UVA 4
273 The Labyrinth Categories Codeforces Educational Codeforces Round 5 4
274 Ciel the Commander Categories Codeforces Codeforces Round #190 (Div. 1) & Codeforces Round #190 (Div. 2) 4
275 Happy Valentine Day (Valentine Maze Game) Categories SPOJ 4
276 Nephren gives a riddle Categories Codeforces Codeforces Round #449 (Div. 1) & Codeforces Round #449 (Div. 2) 4
277 Road Map Categories Codeforces Codeforces Beta Round #34 (Div. 2) 4
278 Design Tutorial: Inverse the Problem Categories Codeforces Codeforces Round #270 4
279 Lomsat gelral Categories Codeforces Educational Codeforces Round 2 4
280 Directed Roads Categories Codeforces Codeforces Round #369 (Div. 2) 4
281 Tin Cutter Categories UVA 4
282 Chess Knights Categories A2 Online Judge 4
283 Roads not only in Berland Categories Codeforces Codeforces Beta Round #25 (Div. 2 Only) 4
284 Shopping Categories UVA 4
285 Paths and Trees Categories Codeforces Codeforces Round #303 (Div. 2) 4
286 Here We Go(relians) Again Categories SPOJ 4
287 Connecting Universities Categories Codeforces Codeforces Round #364 (Div. 1) & Codeforces Round #364 (Div. 2) 4
288 Undoubtedly Lucky Numbers Categories Codeforces Codeforces Round #150 (Div. 2) 4
289 Garland Categories Codeforces Codeforces Round #398 (Div. 2) 4
290 Statues Categories Codeforces Codeforces Beta Round #94 (Div. 1 Only) & Codeforces Beta Round #94 (Div. 2 Only) 4
291 Eternal Victory Categories Codeforces Codeforces Beta Round #57 (Div. 2) 4
292 A and B and Lecture Rooms Categories Codeforces Codeforces Round #294 (Div. 2) 4
293 Book of Evil Categories Codeforces Codeforces Round #196 (Div. 2) & Codeforces Round #196 (Div. 1) 4
294 Fire Again Categories Codeforces Codeforces Beta Round #35 (Div. 2) 4
295 Cow Program Categories Codeforces Codeforces Round #174 (Div. 1) & Codeforces Round #174 (Div. 2) 4
296 Chloe and pleasant prizes Categories Codeforces Codeforces Round #384 (Div. 2) 4
297 Phillip and Trains Categories Codeforces Codeforces Round #325 (Div. 1) & Codeforces Round #325 (Div. 2) 4
298 Tournament Categories Codeforces Codeforces Beta Round #27 (Codeforces format, Div. 2) 4
299 A Lot of Games Categories Codeforces Codeforces Round #260 (Div. 1) & Codeforces Round #260 (Div. 2) 4
300 Jumping on Walls Categories Codeforces Codeforces Round #125 (Div. 1) & Codeforces Round #125 (Div. 2) 5
301 Super M Categories Codeforces Codeforces Round #328 (Div. 2) 5
302 MergeSort Categories TopCoder SRM 151 - Div1 medium - Div2 hard] (4560) 5
303 Volleyball Categories Codeforces Codeforces Beta Round #77 (Div. 1 Only) & Codeforces Beta Round #77 (Div. 2 Only) 5
304 Complete The Graph Categories Codeforces Codeforces Round #372 (Div. 1) & Codeforces Round #372 (Div. 2) 5
305 Missile Silos Categories Codeforces Codeforces Round #103 (Div. 2) 5
306 Berzerk Categories Codeforces Codeforces Round #406 (Div. 1) & Codeforces Round #406 (Div. 2) 5
307 Persistent Bookcase Categories Codeforces Codeforces Round #368 (Div. 2) 5
308 pSort Categories Codeforces Codeforces Beta Round #28 (Codeforces format) 5
309 An overnight dance in discotheque Categories Codeforces Codeforces Round #418 (Div. 2) 5
310 Logo Turtle Categories Codeforces Codeforces Beta Round #96 (Div. 1) & Codeforces Beta Round #96 (Div. 2) 5
311 Block Tower Categories Codeforces Codeforces Round #191 (Div. 2) 5
312 Moodular Arithmetic Categories Codeforces Codeforces Round #334 (Div. 1) & Codeforces Round #334 (Div. 2) 5
313 Compatible Numbers Categories Codeforces Codeforces Round #112 (Div. 2) 5
314 Mail Stamps Categories Codeforces Codeforces Beta Round #29 (Div. 2, Codeforces format) 5
315 Cutting Figure Categories Codeforces Codeforces Round #122 (Div. 1) & Codeforces Round #122 (Div. 2) 5
316 Cycle Categories Codeforces Codeforces Beta Round #88 5
317 Inversions problem Categories Codeforces Rockethon 2015 5
318 Masud Rana Categories UVA 5
319 Chocolate Categories Codeforces Codeforces Round #279 (Div. 2) 5
320 Two Paths Categories Codeforces Codeforces Beta Round #14 (Div. 2) 5
321 Misha, Grisha and Underground Categories Codeforces Codeforces Round #425 (Div. 2) 5
322 Inna and Dima Categories Codeforces Codeforces Round #220 (Div. 2) 5
323 Tutorial BFS Categories SPOJ 5
324 Bitwise Formula Categories Codeforces Codeforces Round #402 (Div. 1) & Codeforces Round #402 (Div. 2) 5
325 Valid Sets Categories Codeforces Codeforces Round #277 (Div. 2) 5
326 Infinite Maze Categories Codeforces Codeforces Round #124 (Div. 1) & Codeforces Round #124 (Div. 2) 5
327 Vitaly and Cycle Categories Codeforces Codeforces Round #311 (Div. 2) 5
328 Mahmoud and a Dictionary Categories Codeforces Codeforces Round #396 (Div. 2) 5
329 Umnozak Categories SPOJ 5
330 Comments Categories Codeforces Codeforces Round #387 (Div. 2) 5
331 Text Editor Categories Codeforces Codeforces Round #154 (Div. 2) 5
332 Yaroslav and Time Categories Codeforces Codeforces Round #182 (Div. 1) & Codeforces Round #182 (Div. 2) 5
333 Cycle in Graph Categories Codeforces Codeforces Round #161 (Div. 2) 5
334 Blood Cousins Categories Codeforces Codeforces Round #130 (Div. 2) 5
335 Hierarchy Categories Codeforces Codeforces Beta Round #17 5
336 Weird journey Categories Codeforces Codeforces Round #407 (Div. 1) & Codeforces Round #407 (Div. 2) 5
337 GRAVITY Categories SPOJ 5
338 Kay and Snowflake Categories Codeforces Codeforces Round #359 (Div. 1) & Codeforces Round #359 (Div. 2) 5
339 Water Tree Categories Codeforces Codeforces Round #200 (Div. 1) 5
340 Transmissão de Energia Categories URI 5
341 Kruskal Categories SPOJ 5
342 Square Earth? Categories Codeforces Codeforces Beta Round #53 5
343 Connected Components Categories Codeforces Croc Champ 2013 - Round 1 5
344 What is for dinner? Categories Codeforces Codeforces Beta Round #33 (Codeforces format) 5
345 Chinese Checkers Categories UVA 5
346 Three States Categories Codeforces Codeforces Round #327 (Div. 1) & Codeforces Round #327 (Div. 2) 5
347 Tree and Queries Categories Codeforces Codeforces Round #221 (Div. 1) 5
348 Theseus and labyrinth Categories Codeforces Codeforces Round #354 (Div. 2) 5
349 Dima and Bacteria Categories Codeforces Codeforces Round #234 (Div. 2) 5
350 Breaking Good Categories Codeforces Codeforces Round #287 (Div. 2) 5
351 BFS (Binary Fibonacci String) Categories UVA 5
352 STL Categories Codeforces Codeforces Round #120 (Div. 2) 5
353 Speedy Escape Categories UVA 5
354 Minimum spanning tree for each edge Categories Codeforces Educational Codeforces Round 3 5
355 Ants in Leaves Categories Codeforces Educational Codeforces Round 7 6
356 Ring Road 2 Categories Codeforces Codeforces Beta Round #27 (Codeforces format, Div. 2) 6
357 Caravans Categories Timus 6
358 Game Categories Codeforces Codeforces Round #131 (Div. 1) & Codeforces Round #131 (Div. 2) 6
359 Sereja and Periods Categories Codeforces Codeforces Round #187 (Div. 1) & Codeforces Round #187 (Div. 2) 6
360 Making Genome in Berland Categories Codeforces VK Cup 2016 - Qualification Round 2 6
361 Increasing Shortest Path Categories A2 Online Judge 6
362 Love Triangles Categories Codeforces Codeforces Round #309 (Div. 1) & Codeforces Round #309 (Div. 2) 6
363 Segment Tree Categories SPOJ 6
364 The Road to Berland is Paved With Good Intentions Categories Codeforces Codeforces Round #141 (Div. 2) 6
365 Work Group Categories Codeforces VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) 6
366 Arpa’s overnight party and Mehrdad’s silent entering Categories Codeforces Codeforces Round #383 (Div. 1) & Codeforces Round #383 (Div. 2) 6
367 Greg and Friends Categories Codeforces Codeforces Round #179 (Div. 1) & Codeforces Round #179 (Div. 2) 6
368 String Problem Categories Codeforces Codeforces Beta Round #33 (Codeforces format) 6
369 Solitaire Categories Codeforces Codeforces Round #130 (Div. 2) 6
370 Information Graph Categories Codeforces Codeforces Round #266 (Div. 2) 6
371 Polycarp and Hay Categories Codeforces Codeforces Round #346 (Div. 2) 6
372 EKG Categories Codeforces ABBYY Cup 3.0 6
373 The Great Mixing Categories Codeforces Codeforces Round #407 (Div. 1) & Codeforces Round #407 (Div. 2) 6
374 Dispute Categories Codeforces Codeforces Round #149 (Div. 2) 6
375 Vladik and Favorite Game Categories Codeforces Codeforces Round #416 (Div. 2) 6
376 Chamber of Secrets Categories Codeforces Croc Champ 2012 - Round 1 6
377 Demiurges Play Again Categories Codeforces Codeforces Round #300 6
378 Mr. Kitayuta's Technology Categories Codeforces Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) 6
379 Police Station Categories Codeforces Codeforces Round #130 (Div. 2) 6
380 AlgoRace Categories Codeforces Codeforces Round #119 (Div. 1) & Codeforces Round #119 (Div. 2) 6
381 Invariance of Tree Categories Codeforces Codeforces Round #319 (Div. 1) & Codeforces Round #319 (Div. 2) 6
382 Graph Coloring Categories Codeforces CROC 2016 - Final Round [Private, For Onsite Finalists Only] 6
383 EKG Categories Codeforces ABBYY Cup 3.0 6
384 Legacy Categories Codeforces Codeforces Round #406 (Div. 1) & Codeforces Round #406 (Div. 2) 6
385 Party Categories Codeforces ABBYY Cup 2.0 - Easy 6
386 Ant on the Tree Categories Codeforces Codeforces Beta Round #29 (Div. 2, Codeforces format) 6
387 Fedor and Essay Categories Codeforces Codeforces Round #267 (Div. 2) 6
388 World Tour Categories Codeforces Codeforces Round #349 (Div. 1) & Codeforces Round #349 (Div. 2) 6
389 Bertown roads Categories Codeforces Codeforces Beta Round #89 (Div. 2) 6
390 Apple Tree Categories Codeforces Codeforces Round #202 (Div. 1) & Codeforces Round #202 (Div. 2) 6
391 Tanya and Password Categories Codeforces Codeforces Round #288 (Div. 2) 6
392 Gifts by the List Categories Codeforces Codeforces Round #357 (Div. 2) 6
393 Divisors Categories Codeforces Codeforces Round #256 (Div. 2) 6
394 Party Categories Codeforces ABBYY Cup 2.0 - Easy 6
395 Road Rally Categories Live Archive 2011 North America - Mid-Atlantic USA 6
396 Hamiltonian Spanning Tree Categories Codeforces Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) 6
397 Fixed Partition Contest Management Categories SPOJ 6
398 Giving Awards Categories Codeforces Coder-Strike 2014 - Round 1 6
399 Little Pony and Summer Sun Celebration Categories Codeforces Codeforces Round #259 (Div. 1) & Codeforces Round #259 (Div. 2) 6
400 Leha and another game about graph Categories Codeforces Codeforces Round #429 (Div. 1) & Codeforces Round #429 (Div. 2) 6
401 Looksery Party Categories Codeforces Looksery Cup 2015 6
402 Mahmoud and a xor trip Categories Codeforces Codeforces Round #396 (Div. 2) 6
403 Caisa and Tree Categories Codeforces Codeforces Round #264 (Div. 2) 6
404 Table Compression Categories Codeforces Codeforces Round #345 (Div. 1) & Codeforces Round #345 (Div. 2) 6
405 Chocolate Categories Codeforces Codeforces Beta Round #31 (Div. 2, Codeforces format) 7
406 President's Path Categories Codeforces Codeforces Round #241 (Div. 2) 7
407 Valera and Fools Categories Codeforces Codeforces Round #216 (Div. 2) 7
408 Rotate to root Categories UVA 7
409 Bribes Categories Codeforces Bubble Cup 8 - Finals [Online Mirror] 7
410 Wrong Floyd Categories Codeforces Codeforces Round #203 (Div. 2) 7
411 Acyclic Organic Compounds Categories Codeforces Codeforces Round #333 (Div. 1) 7
412 Chessboard Billiard Categories Codeforces Codeforces Beta Round #68 7
413 Tourist Guide Categories Codeforces 2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) 7
414 President and Roads Categories Codeforces Codeforces Round #Pi (Div. 2) 7
415 General Mobilization Categories Codeforces Yandex.Algorithm 2011 Qualification 2 7
416 Blood Cousins Return Categories Codeforces Codeforces Round #151 (Div. 2) 7
417 Shortest Path Categories Codeforces Codeforces Beta Round #55 (Div. 2) 7
418 Event Dates Categories Codeforces School Team Contest #3 (Winter Computer School 2010/11) 7
419 Square Root of Permutation Categories Codeforces Educational Codeforces Round 4 7
420 Little Elephant and Tree Categories Codeforces Codeforces Round #157 (Div. 1) 7
421 World Eater Brothers Categories Codeforces Codeforces Round #148 (Div. 1) & Codeforces Round #148 (Div. 2) 7
422 Hex Tile Equations Categories SPOJ 7
423 Ksenia and Pawns Categories Codeforces Codeforces Round #224 (Div. 2) 7
424 Lucky Number Representation Categories Codeforces Codeforces Round #206 (Div. 1) 7
425 Road Improvement Categories Codeforces VK Cup 2016 - Qualification Round 2 7
426 DRM Categories UVA 7
427 Case of Computer Network Categories Codeforces Codeforces Round #310 (Div. 1) 7
428 Dima and Trap Graph Categories Codeforces Codeforces Round #214 (Div. 2) 7
429 Graph Cutting Categories Codeforces Codeforces Round #238 (Div. 2) & Codeforces Round #238 (Div. 1) 7
430 Pursuit For Artifacts Categories Codeforces Educational Codeforces Round 10 7
431 Circle of Numbers Categories Codeforces Codeforces Round #161 (Div. 2) 7
432 Break Up Categories Codeforces Codeforces Round #364 (Div. 1) & Codeforces Round #364 (Div. 2) 7
433 Knights Categories Codeforces Codeforces Beta Round #33 (Codeforces format) 7
434 Famil Door and Roads Categories Codeforces Codeforces Round #343 (Div. 2) 7
435 Pairs of Numbers Categories Codeforces Codeforces Testing Round #3 7
436 Bear and Square Grid Categories Codeforces Codeforces Round #356 (Div. 1) & Codeforces Round #356 (Div. 2) 7
437 Edges in MST Categories Codeforces Codeforces Round #111 (Div. 2) 7
438 Tree-String Problem Categories Codeforces Croc Champ 2013 - Qualification Round 7
439 Beavermuncher-0xFF Categories Codeforces Codeforces Beta Round #69 (Div. 1 Only) & Codeforces Beta Round #69 (Div. 2 Only) 7
440 Three-dimensional Turtle Super Computer Categories Codeforces VK Cup 2016 - Qualification Round 2 7
441 Cactus Categories Codeforces Codeforces Round #143 (Div. 2) 7
442 Hill Climbing Categories Codeforces Codeforces Round #238 (Div. 1) 7
443 Treeland Tour Categories Codeforces Codeforces Round #279 (Div. 2) 7
444 Peterson Polyglot Categories Codeforces Codeforces Round #402 (Div. 1) & Codeforces Round #402 (Div. 2) 7
445 Lovely Matrix Categories Codeforces Codeforces Round #168 (Div. 1) 7
446 Mike and Fish Categories Codeforces Codeforces Round #305 (Div. 1) 7
447 Okabe and City Categories Codeforces Codeforces Round #420 (Div. 2) 7
448 Weak Memory Categories Codeforces Codeforces Round #119 (Div. 1) & Codeforces Round #119 (Div. 2) 7
449 Data Center Drama Categories Codeforces Codeforces Round #296 (Div. 2) & Codeforces Round #296 (Div. 1) 7
450 Flight Planning Categories UVA 7
451 Bear and Drawing Categories Codeforces Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 1) & Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) 7
452 Bear and Forgotten Tree 2 Categories Codeforces IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) 7
453 Fairy Categories Codeforces Codeforces Beta Round #19 7
454 Fools and Foolproof Roads Categories Codeforces Codeforces Round #212 (Div. 2) 7
455 Variable, or There and Back Again Categories Codeforces VK Cup 2012 Round 3 7
456 Snake Categories Codeforces Codeforces Round #139 (Div. 2) 7
457 T-decomposition Categories Codeforces Codeforces Round #147 (Div. 2) 8
458 Playing on Graph Categories Codeforces VK Cup 2015 - Round 3 (unofficial online mirror, Div. 1 only) 8
459 BerDonalds Categories Codeforces Codeforces Round #163 (Div. 2) 8
460 Polo the Penguin and Trees Categories Codeforces Codeforces Round #177 (Div. 1) 8
461 Petya and Pipes Categories Codeforces Codeforces Round #212 (Div. 2) 8
462 Balance Categories Codeforces Codeforces Round #188 (Div. 1) & Codeforces Round #188 (Div. 2) 8
463 Constrained Tree Categories Codeforces Rockethon 2015 8
464 Interestring graph and Apples Categories Codeforces Codeforces Beta Round #9 (Div. 2 Only) 8
465 Dominoes Categories Codeforces Codeforces Testing Round #5 8
466 Choosing Subtree is Fun Categories Codeforces Codeforces Round #219 (Div. 1) 8
467 Cyclic Coloring Categories Codeforces Croc Champ 2012 - Final 8
468 Run for beer Categories Codeforces Bubble Cup 8 - Finals [Online Mirror] 8
469 Sweets Game Categories Codeforces Codeforces Beta Round #59 (Div. 2) 8
470 Three Swaps Categories Codeforces Codeforces Round #197 (Div. 2) 8
471 Scheme Categories Codeforces Codeforces Beta Round #22 (Div. 2 Only) 8
472 Kingdom and its Cities Categories Codeforces Codeforces Round #339 (Div. 1) 8
473 Robot Control Categories Codeforces Codeforces Round #201 (Div. 1) 8
474 Xenia and Dominoes Categories Codeforces Codeforces Round #199 (Div. 2) 8
475 Board Game Categories Codeforces Codeforces Round #335 (Div. 1) 8
476 Colorado Potato Beetle Categories Codeforces Codeforces Round #150 (Div. 1) & Codeforces Round #150 (Div. 2) 8
477 Sereja and Sets Categories Codeforces Codeforces Round #215 (Div. 1) 8
478 CNF 2 Categories Codeforces Codeforces Round #317 [AimFund Thanks-Round] (Div. 1) & Codeforces Round #317 [AimFund Thanks-Round] (Div. 2) 8
479 Petya and Tree Categories Codeforces Yandex.Algorithm 2011 Round 1 8
480 Mushroom Strife Categories Codeforces Codeforces Beta Round #56 8
481 Drazil and Morning Exercise Categories Codeforces Codeforces Round #292 (Div. 1) 8
482 The Chocolate Spree Categories Codeforces Manthan, Codefest 16 8
483 e-Government Categories Codeforces VK Cup 2012 Round 2 8
484 Intergalaxy Trips Categories Codeforces Codeforces Round #335 (Div. 1) 8
485 Tourists Categories Codeforces Codeforces Round #278 (Div. 1) 8
486 Quarrel Categories Codeforces Codeforces Beta Round #29 (Div. 2, Codeforces format) 8
487 Opening Portals Categories Codeforces Codeforces Round #124 (Div. 1) 8
488 Matching Names Categories Codeforces VK Cup 2015 - Finals, online mirror 8
489 Archaeology Categories Codeforces Croc Champ 2012 - Round 2 8
490 Take-off Ramps Categories Codeforces Codeforces Round #101 (Div. 2) 8
491 Beautiful Road Categories Codeforces Codeforces Beta Round #73 (Div. 1 Only) 8
492 Birthday Categories Codeforces Codeforces Round #282 (Div. 1) 8
493 Flights Categories Codeforces Bayan 2012-2013 Elimination Round (ACM ICPC Rules, English statements) 8
494 IT Restaurants Categories Codeforces VK Cup 2012 Finals (unofficial online-version) 8
495 Yash And Trees Categories Codeforces Manthan, Codefest 16 8
496 One-Based Arithmetic Categories Codeforces Testing Round #10 8
497 FreeDiv Categories Codeforces Codeforces Beta Round #66 8
498 Graph basics concepts Categories SPOJ 8
499 Password Categories Codeforces Codeforces Beta Round #71 8
500 The Classic Problem Categories Codeforces Codeforces Round #265 (Div. 1) 9
501 Battlefield Categories Codeforces Codeforces Round #117 (Div. 2) 9
502 The Red Button Categories Codeforces MemSQL start[c]up Round 1 9
503 Wormhouse Categories Codeforces Codeforces Beta Round #58 9
504 Cycling City Categories Codeforces Codeforces Round #295 (Div. 1) 9
505 Strongly Connected City 2 Categories Codeforces Bayan 2015 Contest Warm Up 9
506 Trial for Chief Categories Codeforces Codeforces Beta Round #37 9
507 BHTML+BCSS Categories Codeforces Croc Champ 2012 - Qualification Round 9
508 Clockwork Bomb Categories Codeforces Codeforces Round #345 (Div. 1) 9
509 Wilbur and Strings Categories Codeforces Codeforces Round #331 (Div. 2) 9
510 Pairs Categories Codeforces Yandex.Algorithm Open 2011 Qualification 1 9
511 São João Categories SPOJ Brazil 9
512 Bear and Chase Categories Codeforces Codeforces Round #356 (Div. 1) 9
513 Winning Strategy Categories Codeforces Yandex.Algorithm 2011 Finals 9
514 Ship's Shortest Path Categories Codeforces Codeforces Beta Round #67 (Div. 2) 9
515 Track Categories Codeforces Codeforces Beta Round #72 (Div. 1 Only) & Codeforces Beta Round #72 (Div. 2 Only) 9
516 Meeting Her Categories Codeforces Codeforces Round #148 (Div. 1) 9
517 Sagheer and Kindergarten Categories Codeforces Codeforces Round #417 (Div. 2) 9
518 Neatness Categories Codeforces Codeforces Round #209 (Div. 2) 9
519 Harry Potter and the Sorting Hat Categories Codeforces Codeforces Beta Round #60 9
520 Simplifying the Farm Categories SPOJ 9
521 Caterpillar Categories Codeforces Codeforces Beta Round #48 9
522 DFS Categories Codeforces Lyft Level 5 Challenge 2018 - Final Round 9
523 Circling Round Treasures Categories Codeforces Codeforces Round #221 (Div. 1) & Codeforces Round #221 (Div. 2) 9
524 Road Repairs Categories Codeforces Codeforces Round #145 (Div. 1, ACM-ICPC Rules) 9
525 Maze Categories Codeforces Codeforces Beta Round #92 (Div. 1 Only) 9
526 Cycle Categories Codeforces Codeforces Beta Round #97 (Div. 1) 9
527 Game with Points Categories Codeforces Testing Round #9 9
528 Levko and Game Categories Codeforces Codeforces Round #210 (Div. 1) 9
529 Bitonix' Patrol Categories Codeforces Codeforces Round #134 (Div. 1) 9
530 Evacuation Categories Codeforces Codeforces Beta Round #70 (Div. 2) 9
531 Superhero's Job Categories Codeforces VK Cup 2015 - Round 3 (unofficial online mirror, Div. 1 only) 9
532 Pilgrims Categories Codeforces Codeforces Round #202 (Div. 1) 9
533 Monsters and Diamonds Categories Codeforces MemSQL start[c]up Round 1 9
534 Rats Categories Codeforces Codeforces Round #155 (Div. 2) 9
535 Fetch the Treasure Categories Codeforces Codeforces Round #185 (Div. 1) & Codeforces Round #185 (Div. 2) 9
536 Pumping Stations Categories Codeforces Codeforces Round #200 (Div. 1) 9
537 Arkady and a Nobody-men Categories Codeforces Codeforces Round #434 (Div. 1, based on Technocup 2018 Elimination Round 1) 9
538 Logistical Questions Categories Codeforces VK Cup 2015 - Finals, online mirror 10
539 The Overdosing Ubiquity Categories Codeforces Codeforces Round #439 (Div. 2) 10
540 Dynamic Programming Categories A2 Online Judge 10
541 Chain Letter Categories Codeforces Friday the 13th, Programmers Day 10
542 Island Puzzle Categories Codeforces 8VC Venture Cup 2016 - Final Round 10
543 Colored Jenga Categories Codeforces Codeforces Round #242 (Div. 2) 10
544 Wavy numbers Categories Codeforces Codeforces Round #273 (Div. 2) 10
545 Greedy Petya Categories Codeforces April Fools Day Contest 2013 10
546 Nikita and game Categories Codeforces Codeforces Round #430 (Div. 2) 10
547 Baldman and the military Categories Codeforces Codeforces Beta Round #41 10
548 Princess and Her Shadow Categories Codeforces Codeforces Round #188 (Div. 1) 10
549 Tree and Table Categories Codeforces Codeforces Round #153 (Div. 1) 10
550 Longest Maze Path Categories SPOJ 10
551 Knight Moves Categories Live Archive 2002 North America - Southeast USA 10
552 Leaders Categories Codeforces Yandex.Algorithm 2011 Finals 10
553 Rap God Categories Codeforces Codeforces Round #406 (Div. 1) 10
554 Taxi in Berland Categories Codeforces 2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) 10
555 Gnomes of Might and Magic Categories Codeforces Codeforces Round #115 10
556 Summer Dichotomy Categories Codeforces Codeforces Round #300 10
557 Escaping on Beaveractor Categories Codeforces ABBYY Cup 3.0 - Finals (online version) 10
558 Appleman and a Game Categories Codeforces Codeforces Round #263 (Div. 1) 10
559 Harry Potter and Moving Staircases Categories Codeforces Codeforces Beta Round #60 10
560 Misha and LCP on Tree Categories Codeforces Codeforces Round #285 (Div. 1) 10
561 Suns and Rays Categories Codeforces ABBYY Cup 3.0 10
562 Battleship Categories Codeforces Unknown Language Round #3 10
563 Sloth Categories Codeforces Codeforces Round #446 (Div. 1) 10
564 Bear and Chemistry Categories Codeforces VK Cup 2016 - Round 1 10
565 Doe Graphs Categories Codeforces Codeforces Round #144 (Div. 1) & Codeforces Round #144 (Div. 2) 10
566 #dynamic-programming&nbsp;(168)</span> Categories SPOJ 10
567 Suns and Rays Categories Codeforces ABBYY Cup 3.0 10
568 Berland Miners Categories Codeforces VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) 10
569 Chess Categories Codeforces Codeforces Beta Round #53 10