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Binary Search & Ternary Search problems
Problem Name Online Judge Year Contest Difficulty Level
1 4 values whose sum is 0 Categories SPOJ 1
2 Shake Shake Shaky Categories SPOJ 1
3 Chloe and the sequence Categories Codeforces Codeforces Round #384 (Div. 2) 1
4 The Playboy Chimp Categories UVA 1
5 Prime Frequency Categories UVA 1
6 Rent your airplane and make money Categories SPOJ 1
7 Solve It Categories UVA 1
8 Queries about less or equal elements Categories Codeforces Educational Codeforces Round 2 1
9 Worms Categories Codeforces Codeforces Round #271 (Div. 2) 1
10 Sphere in a tetrahedron Categories SPOJ 1
11 Vanya and Lanterns Categories Codeforces Codeforces Round #280 (Div. 2) 1
12 4 Values whose Sum is 0 Categories TJU 1
13 Monthly Expense Categories PKU 1
14 Not a Triangle Categories SPOJ 1
15 Interesting drink Categories Codeforces Codeforces Round #367 (Div. 2) 1
16 Fill the Cisterns Categories SPOJ 1
17 Touch of Venom Categories SPOJ 1
18 Help the soldier Categories SPOJ 1
19 GCD LCM Categories UVA 1
20 Binary Search Tree Categories Live Archive 2010 Asia - Daejeon 1
21 Pyramids Categories SPOJ 1
22 Kefa and Company Categories Codeforces Codeforces Round #321 (Div. 2) 1
23 River Hopscotch Categories PKU 1
24 Copying Books Categories SPOJ 1
25 String it out Categories SPOJ 1
26 Number of Ways Categories Codeforces Codeforces Round #266 (Div. 2) 1
27 ABCDEF Categories SPOJ 1
28 Books Categories Codeforces Codeforces Round #171 (Div. 2) 1
29 Hamster flight Categories SPOJ 1
30 Pie Categories SPOJ 1
31 Exact Sum Categories UVA 1
32 DZY Loves Chessboard Categories Codeforces Codeforces Round #254 (Div. 2) 1
33 Aggressive cows Categories PKU 1
34 Aggressive cows Categories SPOJ 1
35 Eko Categories SPOJ 1
36 K12 - Building Construction Categories SPOJ 1
37 Where is the Marble? Categories UVA 1
38 Ternary Categories UVA 1
39 Cable master Categories PKU 1
40 Tourist's Notes Categories Codeforces Codeforces Round #300 2
41 Vasya and String Categories Codeforces Codeforces Round #354 (Div. 2) 2
42 Hamburgers Categories Codeforces Codeforces Round #218 (Div. 2) 2
43 String Game Categories Codeforces Codeforces Round #402 (Div. 1) & Codeforces Round #402 (Div. 2) 2
44 Distributing Ballot Boxes Categories SPOJ 2
45 Anton and Fairy Tale Categories Codeforces Codeforces Round #404 (Div. 2) 2
46 Drying Categories PKU 2
47 Prime Matrix Categories Codeforces Codeforces Round #166 (Div. 2) 2
48 Meteors Categories SPOJ 2
49 Chat Order Categories Codeforces VK Cup 2016 - Qualification Round 1 2
50 New Year and Rating Categories Codeforces Good Bye 2016 2
51 More Cowbell Categories Codeforces Codeforces Round #334 (Div. 2) 2
52 Median Categories PKU 2
53 Counting Kangaroos is Fun Categories Codeforces Codeforces Round #219 (Div. 1) & Codeforces Round #219 (Div. 2) 2
54 k-Multiple Free Set Categories Codeforces Codeforces Round #168 (Div. 1) & Codeforces Round #168 (Div. 2) 2
55 ICPC Scoreboard Categories Live Archive 2007 Latin America - South America 2
56 Lucky Numbers (easy) Categories Codeforces Codeforces Beta Round #77 (Div. 2 Only) 2
57 Points on Line Categories Codeforces Codeforces Round #153 (Div. 1) & Codeforces Round #153 (Div. 2) 2
58 K Best Categories PKU 2
59 Mafia Categories Codeforces Codeforces Round #202 (Div. 1) & Codeforces Round #202 (Div. 2) 2
60 Chain Reaction Categories Codeforces Codeforces Round #336 (Div. 1) & Codeforces Round #336 (Div. 2) 2
61 Binary Search Tree Categories SPOJ 2
62 Copying Books Categories UVA 2
63 Dropping tests Categories PKU 2
64 Popes Categories UVA 2
65 Sagheer and Nubian Market Categories Codeforces Codeforces Round #417 (Div. 2) 2
66 Polo the Penguin and Matrix Categories Codeforces Codeforces Round #177 (Div. 2) 2
67 Mummy Madness Categories Live Archive 2011 World Finals - Orlando 2
68 Crossed Ladders Categories UVA 2
69 Multiplication Table Categories Codeforces Codeforces Round #256 (Div. 2) 2
70 Funny scales Categories SPOJ 2
71 Password Categories Codeforces Codeforces Beta Round #93 (Div. 1 Only) & Codeforces Beta Round #93 (Div. 2 Only) 2
72 Fill the Containers Categories UVA 2
73 Karen and Coffee Categories Codeforces Codeforces Round #419 (Div. 2) 2
74 Geometric Progression Categories Codeforces Codeforces Round #Pi (Div. 2) 2
75 Moo University - Financial Aid Categories PKU 2
76 Burning Midnight Oil Categories Codeforces Codeforces Round #112 (Div. 2) 2
77 Another Problem on Strings Categories Codeforces Codeforces Round #112 (Div. 2) 2
78 Rank List Categories Codeforces Codeforces Round #113 (Div. 2) 2
79 Megacity Categories Codeforces Codeforces Round #242 (Div. 2) 3
80 Towers of Hanoi Categories UVA 3
81 Bubble Sort Graph Categories Codeforces Codeforces Round #198 (Div. 2) & Codeforces Round #198 (Div. 1) 3
82 Glass Carving Categories Codeforces Codeforces Round #296 (Div. 2) & Codeforces Round #296 (Div. 1) 3
83 Roads Repair Categories SPOJ 3
84 Little Elephant and Array Categories Codeforces Codeforces Round #136 (Div. 1) & Codeforces Round #136 (Div. 2) 3
85 Maximum Value Categories Codeforces Codeforces Round #276 (Div. 1) & Codeforces Round #276 (Div. 2) 3
86 ICPC Scoreboard Categories SPOJ 3
87 Matrix Categories PKU 3
88 LLPS Categories Codeforces Codeforces Round #127 (Div. 2) 3
89 Bear and Prime Numbers Categories Codeforces Codeforces Round #226 (Div. 2) 3
90 Exams Categories Codeforces Codeforces Round #377 (Div. 2) 3
91 Trick or Treat Categories SPOJ 3
92 To Add or Not to Add Categories Codeforces Codeforces Round #143 (Div. 2) 3
93 Vasya and Basketball Categories Codeforces Codeforces Round #281 (Div. 2) 3
94 Little Elephant and Interval Categories Codeforces Codeforces Round #129 (Div. 1) & Codeforces Round #129 (Div. 2) 3
95 Cloud of Hashtags Categories Codeforces Codeforces Round #401 (Div. 2) 3
96 Modified GCD Categories Codeforces Codeforces Beta Round #67 (Div. 2) 3
97 Array Categories Codeforces Codeforces Round #138 (Div. 2) 3
98 Vasiliy's Multiset Categories Codeforces Codeforces Round #367 (Div. 2) 3
99 Present Categories Codeforces Codeforces Round #262 (Div. 2) 3
100 Fantastic Discovery Categories SPOJ 3
101 Eugeny and Play List Categories Codeforces Codeforces Round #182 (Div. 2) 3
102 Mike and Feet Categories Codeforces Codeforces Round #305 (Div. 1) & Codeforces Round #305 (Div. 2) 3
103 grace marks Categories SPOJ 3
104 Through the Desert Categories UVA 3
105 Glasnici Categories SPOJ 3
106 Alyona and Spreadsheet Categories Codeforces Codeforces Round #401 (Div. 2) 3
107 Funky Numbers Categories Codeforces Codeforces Round #121 (Div. 2) 3
108 Mashmokh and Tokens Categories Codeforces Codeforces Round #240 (Div. 2) 3
109 Watto and Mechanism Categories Codeforces Codeforces Round #291 (Div. 2) 3
110 Physics Practical Categories Codeforces Codeforces Round #154 (Div. 2) 3
111 Non-square Equation Categories Codeforces Codeforces Round #144 (Div. 2) 3
112 Long Jumps Categories Codeforces Codeforces Round #274 (Div. 2) & Codeforces Round #274 (Div. 1) 3
113 Let's Watch Football Categories Codeforces Codeforces Round #123 (Div. 2) 3
114 Booking System Categories Codeforces Codeforces Round #241 (Div. 2) 3
115 Telephone Lines Categories PKU 3
116 Dress'em in Vests! Categories Codeforces VK Cup 2012 Round 1 3
117 Quiz Categories Codeforces Codeforces Round #196 (Div. 2) & Codeforces Round #196 (Div. 1) 3
118 Bear and Blocks Categories Codeforces Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 1) & Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) 3
119 Hard Process Categories Codeforces Educational Codeforces Round 11 3
120 Cow Acrobats Categories PKU 3
121 Primes on Interval Categories Codeforces Codeforces Round #147 (Div. 2) 3
122 Grapevine Categories UVA 3
123 Escape Categories Codeforces Codeforces Round #105 (Div. 2) 4
124 Pasha and Phone Categories Codeforces Codeforces Round #330 (Div. 2) 4
125 MUH and House of Cards Categories Codeforces Codeforces Round #269 (Div. 2) 4
126 Binary Number Categories Codeforces Codeforces Beta Round #75 (Div. 2 Only) 4
127 Find Pair Categories Codeforces Codeforces Round #111 (Div. 2) 4
128 Queue Categories Codeforces Codeforces Beta Round #75 (Div. 1 Only) & Codeforces Beta Round #75 (Div. 2 Only) 4
129 Peter and Snow Blower Categories Codeforces Codeforces Round #339 (Div. 1) & Codeforces Round #339 (Div. 2) 4
130 Civilization Categories Codeforces Codeforces Round #260 (Div. 1) & Codeforces Round #260 (Div. 2) 4
131 One-Dimensional Battle Ships Categories Codeforces Codeforces Round #Pi (Div. 2) 4
132 Image Preview Categories Codeforces Codeforces Round #345 (Div. 1) & Codeforces Round #345 (Div. 2) 4
133 Weakness and Poorness Categories Codeforces Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] & Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] 4
134 Tree Requests Categories Codeforces Codeforces Round #316 (Div. 2) 4
135 Steps Categories Codeforces Codeforces Round #108 (Div. 2) 4
136 A and B and Lecture Rooms Categories Codeforces Codeforces Round #294 (Div. 2) 4
137 Vanya and Computer Game Categories Codeforces Codeforces Round #280 (Div. 2) 4
138 Little Elephant and Cards Categories Codeforces Codeforces Round #129 (Div. 1) & Codeforces Round #129 (Div. 2) 4
139 Pipeline Categories Codeforces Codeforces Round #176 (Div. 2) 4
140 Garland Categories PKU 4
141 Devu and his Brother Categories Codeforces Codeforces Round #251 (Div. 2) 4
142 Petya and Divisors Categories Codeforces Codeforces Beta Round #85 (Div. 1 Only) & Codeforces Beta Round #85 (Div. 2 Only) 4
143 Sereja and Prefixes Categories Codeforces Codeforces Round #223 (Div. 1) & Codeforces Round #223 (Div. 2) 4
144 Alyona and a tree Categories Codeforces Codeforces Round #381 (Div. 1) & Codeforces Round #381 (Div. 2) 4
145 New Year Snowmen Categories Codeforces Codeforces Round #100 4
146 Well-known Numbers Categories Codeforces Codeforces Round #139 (Div. 2) 4
147 Office Keys Categories Codeforces Codeforces Round #424 (Div. 1, rated, based on VK Cup Finals) & Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) 4
148 Fight the Monster Categories Codeforces Codeforces Round #278 (Div. 1) & Codeforces Round #278 (Div. 2) 4
149 XK Segments Categories Codeforces Codeforces Round #448 (Div. 2) 4
150 Robin Hood Categories Codeforces Codeforces Round #352 (Div. 1) & Codeforces Round #352 (Div. 2) 4
151 Matchmaker Categories Codeforces VK Cup 2012 Qualification Round 2 4
152 Tennis Game Categories Codeforces Codeforces Round #283 (Div. 2) & Codeforces Round #283 (Div. 1) 4
153 Ciel and Robot Categories Codeforces Codeforces Round #190 (Div. 1) & Codeforces Round #190 (Div. 2) 4
154 Pair of Numbers Categories Codeforces Codeforces Round #209 (Div. 2) 4
155 Tavas and Karafs Categories Codeforces Codeforces Round #299 (Div. 2) & Codeforces Round #299 (Div. 1) 4
156 Planets Categories Codeforces Codeforces Round #142 (Div. 1) & Codeforces Round #142 (Div. 2) 4
157 Longest k-Good Segment Categories Codeforces Educational Codeforces Round 5 4
158 As Fast As Possible Categories Codeforces Codeforces Round #364 (Div. 1) & Codeforces Round #364 (Div. 2) 4
159 Mike and Chocolate Thieves Categories Codeforces Codeforces Round #361 (Div. 2) 4
160 Almost Arithmetical Progression Categories Codeforces Codeforces Round #156 (Div. 2) & Codeforces Round #156 (Div. 1) 4
161 String Manipulation 1.0 Categories Codeforces VK Cup 2012 Qualification Round 2 4
162 GukiZ hates Boxes Categories Codeforces Codeforces Round #307 (Div. 2) 4
163 Friends and Presents Categories Codeforces Codeforces Round #275 (Div. 2) 4
164 Monitor Categories Codeforces Codeforces Beta Round #16 (Div. 2 Only) 5
165 The Bakery Categories Codeforces Codeforces Round #426 (Div. 1) & Codeforces Round #426 (Div. 2) 5
166 Renting Bikes Categories Codeforces Codeforces Round #211 (Div. 2) 5
167 Leaving Auction Categories Codeforces Codeforces Round #388 (Div. 2) 5
168 Yaroslav and Time Categories Codeforces Codeforces Round #182 (Div. 1) & Codeforces Round #182 (Div. 2) 5
169 Read Time Categories Codeforces Codeforces Round #200 (Div. 1) & Codeforces Round #200 (Div. 2) 5
170 Kyoya and Permutation Categories Codeforces Codeforces Round #309 (Div. 1) & Codeforces Round #309 (Div. 2) 5
171 Guilty --- to the kitchen! Categories Codeforces Codeforces Beta Round #41 5
172 Showstopper Categories PKU 5
173 Preparing for the Contest Categories Codeforces Codeforces Round #222 (Div. 1) & Codeforces Round #222 (Div. 2) 5
174 Chip 'n Dale Rescue Rangers Categories Codeforces Codeforces Round #327 (Div. 1) & Codeforces Round #327 (Div. 2) 5
175 Skills Categories Codeforces Codeforces Round #339 (Div. 1) & Codeforces Round #339 (Div. 2) 5
176 Blood Cousins Categories Codeforces Codeforces Round #130 (Div. 2) 5
177 Misha and Permutations Summation Categories Codeforces Codeforces Round #285 (Div. 2) & Codeforces Round #285 (Div. 1) 5
178 Pillars Categories Codeforces Codeforces Round #271 (Div. 2) 5
179 Friends and Subsequences Categories Codeforces Codeforces Round #361 (Div. 2) 5
180 Vitya and Strange Lesson Categories Codeforces Codeforces Round #430 (Div. 2) 5
181 Handshakes Categories Codeforces Codeforces Round #298 (Div. 2) 5
182 Exposition Categories Codeforces Codeforces Beta Round #6 (Div. 2 Only) 5
183 Enduring Exodus Categories Codeforces CROC 2016 - Elimination Round 5
184 Road to Post Office Categories Codeforces Educational Codeforces Round 15 5
185 Sereja ans Anagrams Categories Codeforces Codeforces Round #215 (Div. 1) & Codeforces Round #215 (Div. 2) 5
186 Olympiad Categories Codeforces Codeforces Round #137 (Div. 2) 5
187 Cycles Categories Codeforces Codeforces Round #144 (Div. 1) & Codeforces Round #144 (Div. 2) 5
188 Degenerate Matrix Categories Codeforces Looksery Cup 2015 5
189 Unordered Subsequence Categories Codeforces Codeforces Beta Round #27 (Codeforces format, Div. 2) 5
190 Copying Data Categories Codeforces Croc Champ 2013 - Round 1 5
191 The Art of Dealing with ATM Categories Codeforces VK Cup 2015 - Round 1 5
192 Making Sequences is Fun Categories Codeforces Codeforces Round #219 (Div. 2) 5
193 Complete The Graph Categories Codeforces Codeforces Round #372 (Div. 1) & Codeforces Round #372 (Div. 2) 5
194 Fedor and coupons Categories Codeforces Codeforces Round #390 (Div. 2) 5
195 Robot Rapping Results Report Categories Codeforces CROC 2016 - Elimination Round 5
196 Strip Categories Codeforces Codeforces Round #278 (Div. 1) & Codeforces Round #278 (Div. 2) 5
197 R2D2 and Droid Army Categories Codeforces Codeforces Round #291 (Div. 2) 5
198 Showstopper Categories SPOJ 5
199 Gourmet and Banquet Categories Codeforces 2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) 5
200 Levko and Array Categories Codeforces Codeforces Round #210 (Div. 1) & Codeforces Round #210 (Div. 2) 5
201 Energy exchange Categories Codeforces Codeforces Beta Round #62 5
202 Cartons of milk Categories Codeforces Codeforces Round #398 (Div. 2) 5
203 Buses Categories Codeforces Codeforces Beta Round #79 (Div. 1 Only) & Codeforces Beta Round #79 (Div. 2 Only) 6
204 Towers Categories Codeforces Codeforces Round #142 (Div. 1) 6
205 Doctor Categories Codeforces Codeforces Beta Round #72 (Div. 1 Only) & Codeforces Beta Round #72 (Div. 2 Only) 6
206 Restoring Increasing Sequence Categories Codeforces Codeforces Round #279 (Div. 2) 6
207 Mushroom Scientists Categories Codeforces Codeforces Round #118 (Div. 1) & Codeforces Round #118 (Div. 2) 6
208 Mr. Bender and Square Categories Codeforces Codeforces Round #156 (Div. 2) & Codeforces Round #156 (Div. 1) 6
209 GukiZ and GukiZiana Categories Codeforces Codeforces Round #307 (Div. 2) 6
210 Characteristics of Rectangles Categories Codeforces Codeforces Round #194 (Div. 1) 6
211 Hiring Categories Codeforces 2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) 6
212 Stripe 2 Categories Codeforces Codeforces Alpha Round #21 (Codeforces format) 6
213 Infinite Inversions Categories Codeforces Codeforces Round #301 (Div. 2) 6
214 Sereja and Periods Categories Codeforces Codeforces Round #187 (Div. 1) & Codeforces Round #187 (Div. 2) 6
215 Vladik and cards Categories Codeforces Codeforces Round #384 (Div. 2) 6
216 Tyndex.Brome Categories Codeforces Codeforces Beta Round #58 6
217 Little Elephant and LCM Categories Codeforces Codeforces Round #157 (Div. 1) & Codeforces Round #157 (Div. 2) 6
218 Array Categories Codeforces Codeforces Beta Round #53 6
219 Searching Rectangles Categories Codeforces Codeforces Round #371 (Div. 1) & Codeforces Round #371 (Div. 2) 6
220 Santa Claus and Tangerines Categories Codeforces Technocup 2017 - Elimination Round 3 6
221 Fly, freebies, fly! Categories Codeforces Testing Round #9 6
222 Banana Categories Codeforces MemSQL start[c]up Round 2 - online version 6
223 CUBE ROOT Categories SPOJ 6
224 Delivery Bears Categories Codeforces IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) 6
225 Police Patrol Categories Codeforces Codeforces Round #244 (Div. 2) 6
226 Hot Bath Categories Codeforces Codeforces Beta Round #93 (Div. 1 Only) & Codeforces Beta Round #93 (Div. 2 Only) 6
227 Sum of Medians Categories Codeforces Yandex.Algorithm 2011 Round 1 6
228 Number Busters Categories Codeforces Codeforces Round #224 (Div. 2) 6
229 Valera and Queries Categories Codeforces Codeforces Round #216 (Div. 2) 6
230 Boxes of Chocolate Categories SPOJ 6
231 Number of Triplets Categories Codeforces Croc Champ 2012 - Round 2 (Unofficial Div. 2 Edition) 6
232 Guess That Car! Categories Codeforces Codeforces Round #127 (Div. 1) & Codeforces Round #127 (Div. 2) 6
233 Random Task Categories Codeforces Codeforces Round #247 (Div. 2) 6
234 Anya and Cubes Categories Codeforces Codeforces Round #297 (Div. 2) 6
235 Gadgets for dollars and pounds Categories Codeforces Educational Codeforces Round 3 6
236 Glad to see you! Categories Codeforces Codeforces Round #415 (Div. 1) & Codeforces Round #415 (Div. 2) 6
237 Stadium and Games Categories Codeforces MemSQL start[c]up Round 1 6
238 Professor GukiZ and Two Arrays Categories Codeforces Educational Codeforces Round 6 7
239 Arthur and Questions Categories Codeforces Codeforces Round #293 (Div. 2) 7
240 Domino Principle Categories Codeforces Codeforces Beta Round #52 (Div. 2) 7
241 Building Bridge Categories Codeforces CROC-MBTU 2012, Final Round (Online version, Div. 2) 7
242 Biathlon Categories Codeforces Codeforces Beta Round #72 (Div. 2 Only) 7
243 Log Stream Analysis Categories Codeforces CROC-MBTU 2012, Elimination Round (ACM-ICPC) 7
244 Hostname Aliases Categories Codeforces CROC 2016 - Qualification 7
245 Mushroom Gnomes - 2 Categories Codeforces Codeforces Beta Round #99 (Div. 1) & Codeforces Beta Round #99 (Div. 2) 7
246 Dima and Trap Graph Categories Codeforces Codeforces Round #214 (Div. 2) 7
247 Sign on Fence Categories Codeforces Codeforces Round #276 (Div. 1) 7
248 Programming Language Categories Codeforces Codeforces Round #126 (Div. 2) 7
249 Zip-line Categories Codeforces Codeforces Round #345 (Div. 1) 7
250 Sereja and Squares Categories Codeforces Codeforces Round #243 (Div. 1) 7
251 Simple Skewness Categories Codeforces 8VC Venture Cup 2016 - Elimination Round 7
252 Harry Potter and the Golden Snitch Categories Codeforces Codeforces Beta Round #60 7
253 Lemmings Categories Codeforces VK Cup 2012 Round 2 7
254 Nudist Beach Categories Codeforces Codeforces Round #309 (Div. 1) 7
255 Blood Cousins Return Categories Codeforces Codeforces Round #151 (Div. 2) 7
256 Hexagons Categories Codeforces Codeforces Round #338 (Div. 2) 7
257 Three Base Stations Categories Codeforces Codeforces Beta Round #48 7
258 Cubes Categories Codeforces Codeforces Round #116 (Div. 2, ACM-ICPC Rules) 7
259 George and Cards Categories Codeforces Codeforces Round #227 (Div. 2) 7
260 Optical Experiment Categories Codeforces Manthan 2011 7
261 Case of a Top Secret Categories Codeforces Codeforces Round #310 (Div. 1) 7
262 Bug in Code Categories Codeforces Coder-Strike 2014 - Finals (online edition, Div. 2) & Coder-Strike 2014 - Finals (online edition, Div. 1) & Coder-Strike 2014 - Finals (online edition, Div. 2) & Coder-Strike 2014 - Finals (online edition, Div. 1) 7
263 Robo-Footballer Categories Codeforces Codeforces Round #152 (Div. 2) & Codeforces Round #152 (Div. 1) 7
264 Blog Photo Categories Codeforces Codeforces Beta Round #49 (Div. 2) 7
265 Hack it! Categories Codeforces Codeforces Round #268 (Div. 1) & Codeforces Round #268 (Div. 2) 7
266 Hiking Categories Codeforces Codeforces Round #277.5 (Div. 2) 7
267 Inna and Binary Logic Categories Codeforces Codeforces Round #234 (Div. 2) 7
268 Inna and Sequence Categories Codeforces Codeforces Round #220 (Div. 2) 7
269 Spider's Web Categories Codeforces Codeforces Round #133 (Div. 2) 7
270 Empire Strikes Back Categories Codeforces Codeforces Round #181 (Div. 2) 7
271 Volcanoes Categories Codeforces Codeforces Round #225 (Div. 1) & Codeforces Round #225 (Div. 2) 8
272 Sweets for Everyone! Categories Codeforces Codeforces Round #152 (Div. 2) & Codeforces Round #152 (Div. 1) 8
273 Tricky and Clever Password Categories Codeforces Codeforces Beta Round #30 (Codeforces format) 8
274 Maze 1D Categories Codeforces Codeforces Round #237 (Div. 2) 8
275 Bear and Bowling 4 Categories Codeforces Educational Codeforces Round 11 8
276 Present to Mom Categories Codeforces Codeforces Beta Round #95 (Div. 2) 8
277 New Year and Cleaning Categories Codeforces Good Bye 2015 8
278 Lucky Tickets Categories Codeforces Codeforces Beta Round #64 8
279 Space Voyage Categories Codeforces ABBYY Cup 2.0 - Easy 8
280 Biathlon Track Categories Codeforces Codeforces Round #242 (Div. 2) 8
281 Space Rescuers Categories Codeforces Codeforces Beta Round #82 (Div. 2) 8
282 Animals and Puzzle Categories Codeforces Codeforces Round #371 (Div. 1) 8
283 Electric Charges Categories Codeforces AIM Tech Round (Div. 1) & AIM Tech Round (Div. 2) 8
284 Mashmokh and Water Tanks Categories Codeforces Codeforces Round #240 (Div. 1) 8
285 Summer Earnings Categories Codeforces Codeforces Round #194 (Div. 1) 8
286 Need For Brake Categories Codeforces Codeforces Beta Round #66 8
287 Bombing Categories Codeforces Codeforces Beta Round #47 8
288 Berland collider Categories Codeforces Codeforces Beta Round #24 8
289 Petya and Tree Categories Codeforces Yandex.Algorithm 2011 Round 1 8
290 MST Company Categories Codeforces Codeforces Testing Round #2 8
291 Choosing Subtree is Fun Categories Codeforces Codeforces Round #219 (Div. 1) 8
292 Michael and Charging Stations Categories Codeforces Codeforces Round #433 (Div. 1, based on Olympiad of Metropolises) 8
293 Thwarting Demonstrations Categories Codeforces Codeforces Round #121 (Div. 1) 8
294 Sereja and Straight Lines Categories Codeforces Codeforces Round #187 (Div. 1) 8
295 Tourist Categories Codeforces All-Ukrainian School Olympiad in Informatics 8
296 Morning run Categories Codeforces Croc Champ 2013 - Finals (online version, Div. 1) 8
297 Preorder Test Categories Codeforces 8VC Venture Cup 2016 - Final Round 8
298 DZY Loves Strings Categories Codeforces Codeforces Round #254 (Div. 1) 8
299 Two Friends Categories Codeforces Codeforces Beta Round #8 8
300 Vanya and Balloons Categories Codeforces Codeforces Round #355 (Div. 2) 8
301 Smile House Categories Codeforces Codeforces Testing Round #4 8
302 Max and Bike Categories Codeforces Codeforces Round #330 (Div. 1) & Codeforces Round #330 (Div. 2) 8
303 Memory for Arrays Categories Codeforces Croc Champ 2013 - Finals (online version, Div. 1) 8
304 Printer Categories Codeforces Codeforces Round #154 (Div. 2) 8
305 Don't fear, DravDe is kind Categories Codeforces Codeforces Beta Round #28 (Codeforces format) 8
306 Startup Funding Categories Codeforces Manthan, Codefest 16 8
307 Guard Towers Categories Codeforces Yandex.Algorithm 2011 Round 1 8
308 Misha and Palindrome Degree Categories Codeforces Codeforces Round #285 (Div. 2) & Codeforces Round #285 (Div. 1) 8
309 DZY Loves Planting Categories Codeforces Codeforces Round #254 (Div. 1) 8
310 Karen and Cards Categories Codeforces Codeforces Round #419 (Div. 1) 9
311 Strange Radiation Categories Codeforces Codeforces Round #425 (Div. 2) 9
312 Thoroughly Bureaucratic Organization Categories Codeforces Codeforces Round #127 (Div. 1) 9
313 Chemistry Experiment Categories Codeforces Codeforces Round #247 (Div. 2) 9
314 Friends Categories Codeforces Bayan 2012-2013 Elimination Round (ACM ICPC Rules, English statements) 9
315 Gripping Story Categories Codeforces Codeforces Round #125 (Div. 1) 9
316 Optimal Point Categories Codeforces Codeforces Round #359 (Div. 1) & Codeforces Round #359 (Div. 2) 9
317 Freezing with Style Categories Codeforces Codeforces Round #107 (Div. 1) 9
318 Pasha and Pipe Categories Codeforces Codeforces Round #293 (Div. 2) 9
319 Buses and People Categories Codeforces Codeforces Round #111 (Div. 2) 9
320 Mr. Kitayuta vs. Bamboos Categories Codeforces Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) 9
321 Space Voyage Categories Codeforces ABBYY Cup 2.0 - Easy 9
322 Lucky Segments Categories Codeforces Codeforces Beta Round #91 (Div. 1 Only) 9
323 Fence Categories Codeforces Codeforces Round #144 (Div. 1) 9
324 Winning Strategy Categories Codeforces Yandex.Algorithm 2011 Finals 9
325 Tractor College Categories Codeforces Codeforces Round #126 (Div. 2) 9
326 Cutting a Fence Categories Codeforces VK Cup 2012 Finals (unofficial online-version) 9
327 Minimum Diameter Categories Codeforces VK Cup 2012 Round 3 9
328 Help Greg the Dwarf Categories Codeforces Codeforces Beta Round #78 (Div. 1 Only) & Codeforces Beta Round #78 (Div. 2 Only) 9
329 Archer's Shot Categories Codeforces Codeforces Beta Round #70 (Div. 2) 9
330 Road to Home Categories Codeforces Codeforces Round #374 (Div. 2) 9
331 Dividing Kingdom Categories Codeforces Codeforces Round #158 (Div. 2) 9
332 Delivering Carcinogen Categories Codeforces Codeforces Round #125 (Div. 1) & Codeforces Round #125 (Div. 2) 9
333 Armistice Area Apportionment Categories Codeforces CROC 2016 - Elimination Round 10
334 Sheep Categories Codeforces Croc Champ 2013 - Finals (online version, Div. 1) 10
335 Painting Edges Categories Codeforces Codeforces Round #319 (Div. 1) 10
336 Forward, march! Categories Codeforces Codeforces Beta Round #11 10
337 Inna and Babies Categories Codeforces Codeforces Round #220 (Div. 2) 10
338 Misha and LCP on Tree Categories Codeforces Codeforces Round #285 (Div. 1) 10
339 Soap Time! - 2 Categories Codeforces Codeforces Round #118 (Div. 1) 10
340 Furukawa Nagisa's Tree Categories Codeforces Codeforces Round #248 (Div. 1) 10
341 Berland Miners Categories Codeforces VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) 10
342 BCPC Categories Codeforces Codeforces Round #328 (Div. 2) 10
343 Mod Mod Mod Categories Codeforces Codeforces Round #445 (Div. 1, based on Technocup 2018 Elimination Round 3) 10
344 Campus Categories Codeforces Codeforces Round #317 [AimFund Thanks-Round] (Div. 1) 10
345 Nikita and game Categories Codeforces Codeforces Round #430 (Div. 2) 10
346 Looking for Owls Categories Codeforces Codeforces Round #203 (Div. 2) 10
347 Cross Sum Categories Codeforces Codeforces Round #336 (Div. 1) 10
348 Duff in Mafia Categories Codeforces Codeforces Round #326 (Div. 1) & Codeforces Round #326 (Div. 2) 10
349 Karen and Neighborhood Categories Codeforces Codeforces Round #419 (Div. 1) 10