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