You must be logged in to add problems to this category

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