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Type
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Tutorial
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1436 Hot Bath binary search brute force math Statement A Codeforces Beta Round 93 (Div. 1 Only) {126} PROGRAMMING Tutorial 1900
9075 Let's Watch Football binary search brute force math Statement A Codeforces Round 123 (Div. 2) {195} PROGRAMMING 1100
7540 Non-square Equation binary search brute force math Statement B Codeforces Round 144 (Div. 2) {233} PROGRAMMING Editorial for Codeforces Round #144 1500
815 Friends binary search bitmasks data structures math Statement B Bayan 2012-2013 Elimination Round (ACM ICPC Rules, English statements) {241} PROGRAMMING 2700
2009 Mr. Bender and Square binary search implementation math Statement D Codeforces Round 156 (Div. 2) {255} PROGRAMMING Codeforces Round #156 tutorial 1900
1794 Little Elephant and LCM binary search combinatorics dp math Statement C Codeforces Round 157 (Div. 1) {258} PROGRAMMING Codeforces Round #157 — Editorial 2400
9877 Pipeline binary search math Statement B Codeforces Round 176 (Div. 2) {287} PROGRAMMING Разбор задач 1700
3649 Ciel and Robot binary search implementation math Statement A Codeforces Round 190 (Div. 1) {321} PROGRAMMING Codeforces Round #190 — Editorial 1700
1568 Stadium and Games binary search math Statement B MemSQL start[c]up Round 1 {325} PROGRAMMING Editorial 1800
2485 Making Sequences is Fun binary search implementation math Statement B Codeforces Round 219 (Div. 2) {373} PROGRAMMING Codeforces Round #219 editorial 1600
1412 Number Busters binary search math Statement B Codeforces Round 224 (Div. 2) {382} PROGRAMMING Codeforces Round #224 (Div. 2) Editorial 2000
6322 Mashmokh and Tokens binary search greedy implementation math Statement B Codeforces Round 240 (Div. 2) {415} PROGRAMMING Codeforces Round #240 Editorial 1500
2321 Random Task binary search bitmasks combinatorics dp math Statement D Codeforces Round 247 (Div. 2) {431} PROGRAMMING Editorial Codeforces Round #247 (Div. 2) 2200
2420 Hack it! binary search constructive algorithms math Statement C Codeforces Round 268 (Div. 1) {468} PROGRAMMING 13896 2800
3570 MUH and House of Cards binary search brute force greedy math Statement C Codeforces Round 269 (Div. 2) {471} PROGRAMMING Codeforces Round #269 Editorial 1700
4090 Friends and Presents binary search math Statement B Codeforces Round 275 (Div. 2) {483} PROGRAMMING Codeforces Round #275 Editorial 1800
3800 Tavas and Karafs binary search greedy math Statement C Codeforces Round 299 (Div. 2) {535} PROGRAMMING Codeforces Round #299 Editorial 1900
5827 Tourist's Notes binary search brute force greedy implementation math Statement C Codeforces Round 300 {538} PROGRAMMING 1600
1993 Degenerate Matrix binary search math Statement H Looksery Cup 2015 {549} PROGRAMMING Looksery Cup 2015 Editorial 2100
2120 Kyoya and Permutation binary search combinatorics constructive algorithms greedy implementation math Statement B Codeforces Round 309 (Div. 1) {553} PROGRAMMING 2200
873 Case of a Top Secret binary search implementation math Statement D Codeforces Round 310 (Div. 1) {555} PROGRAMMING 2500
5949 Bear and Blocks binary search data structures dp math Statement B Codeforces Round 318 [RussianCodeCup Thanks-Round] (Div. 1) {573} PROGRAMMING Codeforces Round #318 [RussianCodeCup Thanks-Round] Editorial 1800
1917 Chip 'n Dale Rescue Rangers binary search geometry math Statement B Codeforces Round 327 (Div. 1) {590} PROGRAMMING 2100
2926 Pasha and Phone binary search math Statement B Codeforces Round 330 (Div. 2) {595} PROGRAMMING 1600
986 Hexagons binary search implementation math Statement E Codeforces Round 338 (Div. 2) {615} PROGRAMMING Codeforces Round #338 (Div. 2) editorial 2200
584 Optimal Point binary search math Statement C Codeforces Round 359 (Div. 1) {685} PROGRAMMING 2800
5389 Mike and Chocolate Thieves binary search combinatorics math Statement C Codeforces Round 361 (Div. 2) {689} PROGRAMMING 1700
3197 As Fast As Possible binary search math Statement A Codeforces Round 364 (Div. 1) {700} PROGRAMMING 46283 1900
9750 Sanatorium binary search constructive algorithms greedy implementation math Statement C Codeforces Round 377 (Div. 2) {732} PROGRAMMING 1300
6569 New Year and Rating binary search greedy math Statement C Good Bye 2016 {750} PROGRAMMING Good Bye 2016 — hints and codes 1600
76470 New Year and Hurry binary search brute force implementation math Statement A Good Bye 2016 {750} PROGRAMMING Good Bye 2016 — hints and codes 800
3885 Unfair Poll binary search constructive algorithms implementation math Statement C Codeforces Round 392 (Div. 2) {758} PROGRAMMING Codeforces Round #392 (Div. 2) Editorial 1700
4366 Voltage Keepsake binary search math Statement A VK Cup 2017 - Round 2 {772} PROGRAMMING 1800
4458 Success Rate binary search math Statement A VK Cup 2017 - Round 3 {773} PROGRAMMING 1700
961 Prairie Partition binary search constructive algorithms greedy math Statement C VK Cup 2017 - Round 3 {773} PROGRAMMING 2300
5954 Molly's Chemicals binary search brute force data structures implementation math Statement C ICM Technex 2017 and Codeforces Round 400 (Div. 1 + Div. 2, combined) {776} PROGRAMMING ICM Technex 2017 and Codeforces Round #400 (Div. 1 + Div. 2, combined) Editorial 1800
7396 Anton and Fairy Tale binary search math Statement C Codeforces Round 404 (Div. 2) {785} PROGRAMMING Editorial 1600
7460 Really Big Numbers binary search brute force dp math Statement C Educational Codeforces Round 23 {817} PROGRAMMING 52638 1600
453 Strange Radiation binary search implementation math Statement C Codeforces Round 425 (Div. 2) {832} PROGRAMMING 2500
1799 Vasya's Function binary search implementation math Statement E Educational Codeforces Round 26 {837} PROGRAMMING 53662 2200
562 Mod Mod Mod binary search dp math Statement E Codeforces Round 445 (Div. 1, based on Technocup 2018 Elimination Round 3) {889} PROGRAMMING Editorial Codeforces Round 445 (and Technocup 2018 — Elimination Round 3) 3100
4372 Save Energy! binary search implementation math Statement A Codeforces Round 467 (Div. 1) {936} PROGRAMMING Codeforces Round #467, Editorial 1700
2565 Sand Fortress binary search constructive algorithms math Statement D Educational Codeforces Round 44 (Rated for Div. 2) {985} PROGRAMMING Educational Codeforces Round 44 Editorial 2100
9065 World Cup binary search math Statement B Codeforces Round 492 (Div. 2) [Thanks, uDebug!] {996} PROGRAMMING Editorial for Codeforces Round #492 [Thanks u-Debug!] 1300
8092 Fly binary search math Statement A Codeforces Round 499 (Div. 1) {1010} PROGRAMMING 60851 1500
663 Write The Contest binary search dp math Statement F Mail.Ru Cup 2018 Round 3 {1056} PROGRAMMING Mail.Ru Cup 2018 Round 3 Editorial 2400
12508 Meme Problem binary search math Statement C Educational Codeforces Round 54 (Rated for Div. 2) {1076} PROGRAMMING E 1300
11170 Squares and Segments binary search constructive algorithms math Statement B Codeforces Round 530 (Div. 2) {1099} PROGRAMMING E 1100
10122 NN and the Optical Illusion binary search geometry math Statement C Codeforces Round 532 (Div. 2) {1100} PROGRAMMING Unofficial Tutorial 1300
6287 Creative Snap binary search brute force divide and conquer math Statement C CodeCraft-19 and Codeforces Round 537 (Div. 2) {1111} PROGRAMMING CodeCraft-19 and Codeforces Round #537 (Div. 2) Editorial 1700
2178 Cute Sequences binary search brute force greedy math Statement D Codeforces Round 561 (Div. 2) {1166} PROGRAMMING Codeforces Round #561 (Div. 2) Editorial 2100
14055 Computer Game binary search math Statement C Codeforces Round 570 (Div. 3) {1183} PROGRAMMING Tutorial 1400
19951 Sport Mafia binary search brute force math Statement B Codeforces Round 574 (Div. 2) {1195} PROGRAMMING Разбор Codeforces Round #574 (Div. 2) 1100
414 You Are Given Some Letters... binary search implementation math Statement F Educational Codeforces Round 70 (Rated for Div. 2) {1202} PROGRAMMING 68972 2800
3462 Numerical Sequence (easy version) binary search brute force math Statement E1 Codeforces Round 587 (Div. 3) {1216} PROGRAMMING Codeforces Round #587 (Div. 3) Editorial 1900
1488 Numerical Sequence (hard version) binary search math Statement E2 Codeforces Round 587 (Div. 3) {1216} PROGRAMMING Codeforces Round #587 (Div. 3) Editorial 2300
15052 Creating a Character binary search math Statement A Educational Codeforces Round 72 (Rated for Div. 2) {1217} PROGRAMMING Educational Codeforces Round 72 Editorial 1300
21298 Perfect Team binary search math Statement C Educational Codeforces Round 73 (Rated for Div. 2) {1221} PROGRAMMING Разбор Educational Codeforces Round 73 1200
4124 Divide The Students binary search greedy math Statement L 2019-2020 ICPC, NERC, Southern and Volga Russian Regional Contest (Online Mirror, ICPC Rules, Teams Preferred) {1250} PROGRAMMING 1700
15852 Obtain Two Zeroes binary search math Statement B Educational Codeforces Round 77 (Rated for Div. 2) {1260} PROGRAMMING Educational Codeforces Round 77 Editorial 1200
3452 Common Number binary search combinatorics dp math Statement E Codeforces Round 608 (Div. 2) {1271} PROGRAMMING 72247 2100
1287 Cow and Treats binary search combinatorics dp greedy implementation math Statement E Codeforces Round 621 (Div. 1 + Div. 2) {1307} PROGRAMMING 2500.0 Codeforces Round #621 (Div. 1 + Div. 2) Editorial 2400
6712 Different Rules binary search constructive algorithms greedy implementation math Statement B Codeforces Round 622 (Div. 2) {1313} PROGRAMMING 1000.0 Editorial 1700
1169 Résumé Review binary search greedy math Statement D Codeforces Round 639 (Div. 1) {1344} PROGRAMMING 1750.0 Codeforces Round #639 Editorial 2700
26576 Card Constructions binary search brute force dp math Statement B Codeforces Round 639 (Div. 2) {1345} PROGRAMMING 1000.0 Codeforces Round #639 Editorial 1100
8910 Phoenix and Science binary search bitmasks constructive algorithms greedy math Statement D Codeforces Round 638 (Div. 2) {1348} PROGRAMMING 2000.0 Codeforces Round #638 (Div. 2) Editorial 1900
55677 K-th Not Divisible by n binary search math Statement C Codeforces Round 640 (Div. 4) {1352} PROGRAMMING 77161 1200
6106 Not So Simple Polygon Embedding binary search brute force geometry math Statement C2 Educational Codeforces Round 87 (Rated for Div. 2) {1354} PROGRAMMING 77593 2000
13926 Mixing Water binary search math Statement C Educational Codeforces Round 88 (Rated for Div. 2) {1359} PROGRAMMING Educational Codeforces Round 88 Editorial 1700
543 RC Kaboom Show binary search brute force data structures geometry math Statement F Educational Codeforces Round 88 (Rated for Div. 2) {1359} PROGRAMMING Educational Codeforces Round 88 Editorial 2900
4098 Guess The Maximums binary search divide and conquer implementation interactive math Statement D Codeforces Round 646 (Div. 2) {1363} PROGRAMMING 2000.0 78202 2100
30325 Shovels and Swords binary search greedy math Statement A Educational Codeforces Round 89 (Rated for Div. 2) {1366} PROGRAMMING Educational Codeforces Round 89 Editorial