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