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3976 Exposition binary search data structures dsu trees two pointers Statement E Codeforces Beta Round 6 (Div. 2 Only) {6} PROGRAMMING Beta Round #6 - Разбор задач 1900
651 Lucky Tickets binary search data structures sortings two pointers Statement C Codeforces Beta Round 64 {70} PROGRAMMING Analysis Codeforces Beta Round #64 2200
408 Archer's Shot binary search geometry math two pointers Statement D Codeforces Beta Round 70 (Div. 2) {78} PROGRAMMING Solutions for Codeforces Beta Round #70 (Div. 2) 2400
355 Lucky Segments binary search implementation two pointers Statement D Codeforces Beta Round 91 (Div. 1 Only) {121} PROGRAMMING Tutorial 2400
805 Present to Mom binary search two pointers Statement F Codeforces Beta Round 95 (Div. 2) {131} PROGRAMMING Some ideas for Round #95 (Div 2) 2200
5528 Dress'em in Vests! binary search brute force greedy two pointers Statement A VK Cup 2012 Round 1 {161} PROGRAMMING VK Cup 2012 Round 1: editorial 1300
14021 Another Problem on Strings binary search brute force dp math strings two pointers Statement C Codeforces Round 112 (Div. 2) {165} PROGRAMMING Codeforces Round #112 (Div. 2) Tutorial 1600
2087 Cubes binary search dp two pointers Statement E Codeforces Round 116 (Div. 2, ACM-ICPC Rules) {180} PROGRAMMING 1700
1505 Spider's Web binary search sortings two pointers Statement D Codeforces Round 133 (Div. 2) {216} PROGRAMMING Editorial for Codeforces Round #133 1800
2353 Olympiad binary search greedy sortings two pointers Statement D Codeforces Round 137 (Div. 2) {222} PROGRAMMING Разбор задач Codeforces Round #137 (Div. 2) 1800
9851 To Add or Not to Add binary search sortings two pointers Statement C Codeforces Round 143 (Div. 2) {231} PROGRAMMING Tutorial Codeforces Round #143 1700
6827 Primes on Interval binary search number theory two pointers Statement C Codeforces Round 147 (Div. 2) {237} PROGRAMMING Codeforces Round #147 (Div. 2) Разбор Задач 1600
21824 Points on Line binary search combinatorics two pointers Statement A Codeforces Round 153 (Div. 1) {251} PROGRAMMING Editorial of Codeforces Round #153 1400
12479 Physics Practical binary search dp sortings two pointers Statement B Codeforces Round 154 (Div. 2) {253} PROGRAMMING Codeforces Round #154 (Div. 2) — tutorial 1400
76154 Books binary search brute force implementation two pointers Statement B Codeforces Round 171 (Div. 2) {279} PROGRAMMING Codeforces Round #171 (Div. 2) Разбор Задач 1400
9507 Eugeny and Play List binary search implementation two pointers Statement B Codeforces Round 182 (Div. 2) {302} PROGRAMMING Codeforces Round #182 tutorial 1200
544 Morning run binary search math two pointers Statement A Croc Champ 2013 - Finals (online version, Div. 1) {309} PROGRAMMING Чемпионат КРОК 2013 — Финальный раунд — Разбор 2000
602 Sereja and Straight Lines binary search data structures geometry sortings two pointers Statement D Codeforces Round 187 (Div. 1) {314} PROGRAMMING Codeforces Round #187 tutorial 2400
3232 Read Time binary search greedy two pointers Statement C Codeforces Round 200 (Div. 1) {343} PROGRAMMING Codeforces Round #200 Tutorial 2100
5820 Pair of Numbers binary search brute force data structures math two pointers Statement D Codeforces Round 209 (Div. 2) {359} PROGRAMMING Editorial Codeforces Round #209 (Div. 2) 2100
1761 Dima and Trap Graph binary search data structures dfs and similar dsu shortest paths two pointers Statement D Codeforces Round 214 (Div. 2) {366} PROGRAMMING Codeforces Round #214 (Div. 2) — Tutorial 2400
15809 Counting Kangaroos is Fun binary search greedy sortings two pointers Statement A Codeforces Round 219 (Div. 1) {372} PROGRAMMING 9944 1700
1166 Choosing Subtree is Fun binary search data structures dfs and similar trees two pointers Statement D Codeforces Round 219 (Div. 1) {372} PROGRAMMING 9944 2600
810 Volcanoes binary search implementation sortings two pointers Statement B Codeforces Round 225 (Div. 1) {383} PROGRAMMING Tutorial 2200
766 Mashmokh and Water Tanks binary search data structures greedy trees two pointers Statement D Codeforces Round 240 (Div. 1) {414} PROGRAMMING Codeforces Round #240 Editorial 2300
6944 Devu and his Brother binary search sortings ternary search two pointers Statement D Codeforces Round 251 (Div. 2) {439} PROGRAMMING Codeforces Round #251 Editorial 1900
891 DZY Loves Strings binary search hashing strings two pointers Statement D Codeforces Round 254 (Div. 1) {444} PROGRAMMING Codeforces Round #254 Editorial 2400
42667 Number of Ways binary search brute force data structures dp two pointers Statement C Codeforces Round 266 (Div. 2) {466} PROGRAMMING Editorial Codeforces Round #266 (Div. 2) 1700
7813 Maximum Value binary search math sortings two pointers Statement B Codeforces Round 276 (Div. 1) {484} PROGRAMMING Codeforces Round #276 — Editorial 2100
4354 Strip binary search data structures dp two pointers Statement B Codeforces Round 278 (Div. 1) {487} PROGRAMMING Tutorial 2300
7553 Vasya and Basketball binary search brute force data structures implementation sortings two pointers Statement C Codeforces Round 281 (Div. 2) {493} PROGRAMMING Codeforces Round #281 (Div. 2) Editorial 1700
5584 R2D2 and Droid Army binary search data structures two pointers Statement D Codeforces Round 291 (Div. 2) {514} PROGRAMMING Codeforces Round #291 (Div. 2) Editorial 2100
32844 Kefa and Company binary search sortings two pointers Statement B Codeforces Round 321 (Div. 2) {580} PROGRAMMING Codeforces Round #321 Editorial 1500
258 BCPC binary search geometry two pointers Statement E Codeforces Round 328 (Div. 2) {592} PROGRAMMING Codeforces Round #328 Problem Analysis 2800
40544 Queries about less or equal elements binary search data structures sortings two pointers Statement B Educational Codeforces Round 2 {600} PROGRAMMING Editorial 1300
3226 Gadgets for dollars and pounds binary search greedy two pointers Statement D Educational Codeforces Round 3 {609} PROGRAMMING 2000
2487 Skills binary search brute force dp greedy sortings two pointers Statement B Codeforces Round 339 (Div. 1) {613} PROGRAMMING Tutorial 2200
12877 Longest k-Good Segment binary search data structures two pointers Statement D Educational Codeforces Round 5 {616} PROGRAMMING Editorial of Educational Codeforces Round 5 1700
2045 Professor GukiZ and Two Arrays binary search two pointers Statement D Educational Codeforces Round 6 {620} PROGRAMMING Editorial of Educational Codeforces Round 6 2200
644 Startup Funding binary search constructive algorithms data structures probabilities two pointers Statement E Manthan, Codefest 16 {633} PROGRAMMING Manthan, Codefest 16: Editorials 2400
4379 Enduring Exodus binary search two pointers Statement C CROC 2016 - Elimination Round {645} PROGRAMMING Editorial for CROC 2016 Elimination Round 1600
3501 Image Preview binary search brute force dp two pointers Statement B Codeforces Round 345 (Div. 1) {650} PROGRAMMING Codeforces Round #345: editorial 1900
10954 Hard Process binary search dp two pointers Statement C Educational Codeforces Round 11 {660} PROGRAMMING Editorial of Educational Codeforces Round 11 1600
23383 Vasya and String binary search dp strings two pointers Statement C Codeforces Round 354 (Div. 2) {676} PROGRAMMING Editorial 1500
145 ...Dary! binary search geometry two pointers Statement F Codeforces Round 362 (Div. 1) {696} PROGRAMMING Codeforces Round #362 (Editorial) 3200
20505 They Are Everywhere binary search strings two pointers Statement C Codeforces Round 364 (Div. 2) {701} PROGRAMMING Codeforces Round #364 problem analysis 1500
23979 Cellular Network binary search implementation two pointers Statement C Educational Codeforces Round 15 {702} PROGRAMMING 46324 1500
5730 Anton and Making Potions binary search dp greedy two pointers Statement C Codeforces Round 379 (Div. 2) {734} PROGRAMMING Tutorial of Codeforces Round #379 (Div. 2) 1600
1666 Santa Claus and Tangerines binary search data structures greedy two pointers Statement E Technocup 2017 - Elimination Round 3 {748} PROGRAMMING Codeforces Round 389 (Div.2) Editorial 2000
3049 Two strings binary search hashing strings two pointers Statement C Educational Codeforces Round 17 {762} PROGRAMMING Tutorial 2100
2432 Cartons of milk binary search data structures greedy sortings two pointers Statement D Codeforces Round 398 (Div. 2) {767} PROGRAMMING Codeforces Round #398 (Div. 2) Editorial 2000
319 Significant Cups *special binary search data structures two pointers Statement B VK Cup 2017 - Wild Card Round 1 {774} PROGRAMMING VK Cup 2017 — Уайлд-кард раунд 1 — Разбор 2300
6894 Alyona and Spreadsheet binary search data structures dp greedy implementation two pointers Statement C Codeforces Round 401 (Div. 2) {777} PROGRAMMING Problem analysis of Codeforces Round #401 (Div. 2) 1600
162 Intranet of Buses binary search geometry implementation two pointers Statement H Технокубок 2017 - Финал (только для онсайт-финалистов) {780} PROGRAMMING Technocup 2017 Finals and Codeforces Round #403 Editorial 3000
2706 Card Game Again binary search data structures number theory two pointers Statement E Educational Codeforces Round 24 {818} PROGRAMMING 52991 2000
6760 The Bakery binary search data structures divide and conquer dp two pointers Statement B Codeforces Round 426 (Div. 1) {833} PROGRAMMING Codeforces Round #426 Editorial 2200
9086 K-Dominant Character binary search implementation two pointers Statement C Educational Codeforces Round 32 {888} PROGRAMMING Educational Codeforces Round 32 - Editorial 1400
3839 XK Segments binary search math sortings two pointers Statement B Codeforces Round 448 (Div. 2) {895} PROGRAMMING Codeforces Round #448(Div.2) Editorial 1700
1330 Bipartite Segments binary search data structures dfs and similar dsu graphs two pointers Statement C Codeforces Round 453 (Div. 1) {901} PROGRAMMING Codeforces Round #453 (Div. 1 & Div. 2) Editorial 2500
2114 Prime Gift binary search dfs and similar math meet-in-the-middle number theory two pointers Statement E Codeforces Round 456 (Div. 2) {912} PROGRAMMING Codeforces Round #456 (Div. 2) Editorial 2600
5643 Three-level Laser binary search greedy two pointers Statement B VK Cup 2018 - Round 2 {924} PROGRAMMING VK Cup 2018 Round 2 and Codeforces Round #472 Editorial 1600
4958 Convenient For Everybody binary search two pointers Statement C Codeforces Round 464 (Div. 2) {939} PROGRAMMING Analysis of Codeforces Round #464 1600
3558 Maximize! binary search greedy ternary search two pointers Statement E Codeforces Round 464 (Div. 2) {939} PROGRAMMING Analysis of Codeforces Round #464 1900
2434 Castle Defense binary search data structures greedy two pointers Statement G Educational Codeforces Round 40 (Rated for Div. 2) {954} PROGRAMMING 58519 2100
1455 Lightsabers (medium) binary search two pointers Statement F2 Helvetic Coding Contest 2018 online mirror (teams allowed, unrated) {958} PROGRAMMING helvetic-coding-contest-2018-editorial.pdf 1900
3361 Single-use Stones binary search flows greedy two pointers Statement D Codeforces Round 476 (Div. 2) [Thanks, Telegram!] {965} PROGRAMMING Analysis of Codeforces Round #476 (Div. 2) [Thanks, Telegram!] 1900
30493 Letters binary search implementation two pointers Statement C Codeforces Round 481 (Div. 3) {978} PROGRAMMING T 1000
4215 Pencils and Boxes binary search data structures dp greedy two pointers Statement E Educational Codeforces Round 44 (Rated for Div. 2) {985} PROGRAMMING Educational Codeforces Round 44 Editorial 2000
606 A Shade of Moonlight binary search geometry math sortings two pointers Statement D Codeforces Round 487 (Div. 2) {989} PROGRAMMING Codeforces Round #487 (Div. 2) Editorial 2500
25960 Three Parts of the Array binary search data structures two pointers Statement C Codeforces Round 498 (Div. 3) {1006} PROGRAMMING 60672 1300
603 Intervals of Intervals binary search data structures two pointers Statement D Codeforces Round 511 (Div. 1) {1034} PROGRAMMING Codeforces Round #511 Editorial 3500
10312 Coffee Break binary search data structures greedy two pointers Statement C Codeforces Round 509 (Div. 2) {1041} PROGRAMMING Codeforces Round #509 (Div. 2) Editorial 1500
6474 Glider binary search data structures two pointers Statement D Codeforces Round 509 (Div. 2) {1041} PROGRAMMING Codeforces Round #509 (Div. 2) Editorial 1700
3092 The Tower is Going Home binary search two pointers Statement A Lyft Level 5 Challenge 2018 - Final Round {1044} PROGRAMMING Lyft Level 5 Challenge 2018 — Final Round — Editorial 1700
5234 Maximum Subrectangle binary search implementation two pointers Statement C Codeforces Round 513 by Barcelona Bootcamp (rated, Div. 1 + Div. 2) {1060} PROGRAMMING User editorial for Codeforces Round 513 by Barcelona Bootcamp (rated, Div. 1 + Div. 2) 1600
5530 Vasya and Robot binary search two pointers Statement C Educational Codeforces Round 53 (Rated for Div. 2) {1073} PROGRAMMING 62742 1800
8020 Born This Way binary search brute force two pointers Statement B Codeforces Global Round 3 {1148} PROGRAMMING Codeforces Global Round 3 Editorial 1700
6770 Match Points binary search greedy sortings ternary search two pointers Statement C Educational Codeforces Round 64 (Rated for Div. 2) {1156} PROGRAMMING 66827 2000
8493 The Party and Sweets binary search constructive algorithms greedy implementation math sortings two pointers Statement A Codeforces Round 559 (Div. 1) {1158} PROGRAMMING 66993 1500
11176 A Tale of Two Lands binary search sortings two pointers Statement C Codeforces Round 561 (Div. 2) {1166} PROGRAMMING Codeforces Round #561 (Div. 2) Editorial 1600
2957 Range Deleting binary search combinatorics data structures two pointers Statement E Educational Codeforces Round 65 (Rated for Div. 2) {1167} PROGRAMMING 67058 2100
2875 Irrigation binary search data structures implementation sortings trees two pointers Statement D Codeforces Round 567 (Div. 2) {1181} PROGRAMMING Editorial of Codeforces Round #567 (based on All-Russian olympiad in the name of Keldysh) 2100
8211 Remove the Substring (hard version) binary search greedy implementation two pointers Statement D2 Codeforces Round 579 (Div. 3) {1203} PROGRAMMING Codeforces Round #579 (Div. 3) Editorial 1800
11757 Uniqueness binary search brute force implementation two pointers Statement B Manthan, Codefest 19 (open for everyone, rated, Div. 1 + Div. 2) {1208} PROGRAMMING 69357 1500
6726 Minimizing Difference binary search constructive algorithms greedy sortings ternary search two pointers Statement E Codeforces Round 592 (Div. 2) {1244} PROGRAMMING Codeforces Round #592 (Div. 2) Tutorial 2000
8217 Yet Another Monster Killing Problem binary search data structures dp greedy sortings two pointers Statement D Educational Codeforces Round 76 (Rated for Div. 2) {1257} PROGRAMMING Educational Codeforces Round 76 Editorial 1700
7364 Irreducible Anagrams binary search constructive algorithms data structures strings two pointers Statement B Codeforces Round 616 (Div. 1) {1290} PROGRAMMING 1000.0 Codeforces Round #616 Editorial 1900
34867 Pair of Topics binary search data structures sortings two pointers Statement D Codeforces Round 627 (Div. 3) {1324} PROGRAMMING Codeforces Round #627 (Div. 3) Editorial
13630 Eugene and an array binary search data structures hashing implementation two pointers Statement C Codeforces Round 632 (Div. 2) {1333} PROGRAMMING 1250.0 Codeforces Round #632 (Div. 2) editorial
11827 Three Blocks Palindrome (easy version) binary search brute force data structures dp two pointers Statement E1 Codeforces Round 634 (Div. 3) {1335} PROGRAMMING 75993 1700
12315 Xenia and Colorful Gems binary search greedy math sortings two pointers Statement B Codeforces Round 635 (Div. 1) {1336} PROGRAMMING 750.0 Codeforces Round #635 Editorial 1800
6387 Multiple Testcases binary search constructive algorithms data structures greedy sortings two pointers Statement D Educational Codeforces Round 86 (Rated for Div. 2) {1342} PROGRAMMING 76633 1900
35755 Ternary String binary search dp implementation two pointers Statement B Educational Codeforces Round 87 (Rated for Div. 2) {1354} PROGRAMMING 77593 1200
12252 Count Triangles binary search implementation math two pointers Statement C Codeforces Round 643 (Div. 2) {1355} PROGRAMMING 1250.0 Codeforces Round #643 (Div. 2) Editorial 1800
8778 The Best Vacation binary search brute force greedy implementation two pointers Statement D Codeforces Round 645 (Div. 2) {1358} PROGRAMMING 1500.0 Codeforces Round #645 (Div. 2) Editorial 1900
4664 Two Arrays binary search brute force combinatorics dp greedy implementation two pointers Statement E Educational Codeforces Round 89 (Rated for Div. 2) {1366} PROGRAMMING Educational Codeforces Round 89 Editorial
1998 Flying Sort (Hard Version) binary search dp greedy two pointers Statement F2 Codeforces Round 650 (Div. 3) {1367} PROGRAMMING Codeforces Round #650 (Div. 3) Editorial
1115 Reading Books (hard version) binary search data structures greedy sortings ternary search two pointers Statement E2 Codeforces Round 653 (Div. 3) {1374} PROGRAMMING 79517
6154 Choosing flowers binary search data structures greedy math sortings two pointers Statement C Codeforces Round 657 (Div. 2) {1379} PROGRAMMING 1250.0 Codeforces Round #657 Editorial 2000
1432 Controversial Rounds binary search data structures dp dsu two pointers Statement F Educational Codeforces Round 93 (Rated for Div. 2) {1398} PROGRAMMING Educational Codeforces Round 93 Editorial
2556 Weights Division (hard version) binary search data structures dfs and similar greedy trees two pointers Statement E2 Codeforces Round 661 (Div. 3) {1399} PROGRAMMING Codeforces Round #661 (Div. 3) Editorial
359 The Potion of Great Power *special binary search data structures graphs interactive sortings two pointers Statement A Central-European Olympiad in Informatics, CEOI 2020, Day 2 (IOI, Unofficial Mirror Contest, Unrated) {1403} PROGRAMMING CEOI 2020 Online Mirror — Day 2 Tutorial
9327 Discrete Acceleration binary search implementation math two pointers Statement C Grakn Forces 2020 {1408} PROGRAMMING 1250.0 Grakn Forces -- Editorial
8514 Two Platforms binary search dp sortings two pointers Statement E Codeforces Round 667 (Div. 3) {1409} PROGRAMMING Codeforces Round #667 (Div. 3) Editorial
17344 k-Amazing Numbers binary search data structures implementation two pointers Statement A Codeforces Round 673 (Div. 1) {1416} PROGRAMMING 500.0 Codeforces Round #673 Editorial 1500
17587 Sage's Birthday (hard version) binary search constructive algorithms greedy implementation sortings two pointers Statement D2 Codeforces Round 671 (Div. 2) {1419} PROGRAMMING 1000.0 Codeforces Round #671 Editorial
2932 Complicated Computations binary search data structures sortings two pointers Statement E Codeforces Round 678 (Div. 2) {1436} PROGRAMMING 2500.0 Codeforces Round #678 (Div. 2). Editorial
4745 Array Partition binary search brute force data structures greedy two pointers Statement F Codeforces Round 686 (Div. 3) {1454} PROGRAMMING Codeforces Round #686 (Div. 3) Editorial
11577 Close Tuples (hard version) binary search combinatorics implementation math sortings two pointers Statement E2 Codeforces Round 690 (Div. 3) {1462} PROGRAMMING Codeforces Round #690 (Div. 3) Editorial
15370 Close Tuples (easy version) binary search combinatorics math sortings two pointers Statement E1 Codeforces Round 690 (Div. 3) {1462} PROGRAMMING Codeforces Round #690 (Div. 3) Editorial
939 Strange Permutation binary search combinatorics data structures dp two pointers Statement E Codeforces Round 694 (Div. 1) {1470} PROGRAMMING 2000.0 86464
9056 Correct Placement binary search data structures sortings two pointers Statement E Codeforces Round 693 (Div. 3) {1472} PROGRAMMING Codeforces Round #693 (Div. 3) Editorial
11298 Cleaning the Phone binary search dp greedy sortings two pointers Statement D Codeforces Round 697 (Div. 3) {1475} PROGRAMMING Codeforces Round #697 (Div. 3) Editorial
10051 Max Median binary search data structures dp two pointers Statement D Codeforces Round 703 (Div. 2) {1486} PROGRAMMING 1750.0 Codeforces Round #703 (Div. 2) Editorial
5759 1D Sokoban binary search implementation two pointers Statement C Educational Codeforces Round 105 (Rated for Div. 2) {1494} PROGRAMMING Educational Codeforces Round 105 Editorial
1057 Group Photo binary search combinatorics implementation two pointers Statement E Contest 2050 and Codeforces Round 718 (Div. 1 + Div. 2) {1517} PROGRAMMING 2500.0 Contest 2050 and Codeforces Round #718 (Div.1 + Div.2) Editorial
35393 Number of Pairs binary search data structures math two pointers Statement C Codeforces Round 725 (Div. 3) {1538} PROGRAMMING Codeforces Round #725 (Div. 3) Editorial
12857 PriceFixed binary search data structures greedy sortings two pointers Statement D Codeforces Round 727 (Div. 2) {1539} PROGRAMMING 1500.0 tutorial 1600
7155 Array Stabilization (GCD version) binary search constructive algorithms data structures number theory two pointers Statement F Codeforces Round 731 (Div. 3) {1547} PROGRAMMING Codeforces Round #731 (Div. 3) Editorial
11581 Integers Have Friends binary search data structures math number theory two pointers Statement B Codeforces Round 736 (Div. 1) {1548} PROGRAMMING 1000.0 Codeforces Round 736 Editorial
1920 Stringforces binary search bitmasks data structures dp greedy strings two pointers Statement E Educational Codeforces Round 111 (Rated for Div. 2) {1550} PROGRAMMING Educational Codeforces Round 111 Editorial
4652 Boring Segments binary search data structures sortings two pointers Statement E Educational Codeforces Round 112 (Rated for Div. 2) {1555} PROGRAMMING 93389 2100
2179 Korney Korneevich and XOR (hard version) binary search brute force dp two pointers Statement F2 Codeforces Round 750 (Div. 2) {1582} PROGRAMMING 1500.0 Codeforces Round #750 (Div.2) Editorial
10533 Complex Market Analysis binary search dp implementation number theory schedules two pointers Statement C Deltix Round, Autumn 2021 (open for everyone, rated, Div. 1 + Div. 2) {1609} PROGRAMMING 1500.0 Deltix Round, Autumn 2021. Editorial 1400
7457 ATM and Students binary search data structures two pointers Statement F Codeforces Round 756 (Div. 3) {1611} PROGRAMMING Tutorial 1700
6525 Range and Partition binary search data structures greedy two pointers Statement B Codeforces Round 768 (Div. 1) {1630} PROGRAMMING 1250.0 Editorial of Codeforces Round #768
5422 New Year Concert binary search data structures dp greedy math number theory two pointers Statement D Codeforces Round 769 (Div. 2) {1632} PROGRAMMING 2000.0 Editorial of Codeforces Round #769
5353 For Gamers. By Gamers. binary search dp math sortings two pointers Statement D Educational Codeforces Round 125 (Rated for Div. 2) {1657} PROGRAMMING 101161
41871 Eating Candies binary search data structures greedy two pointers Statement F Codeforces Round 784 (Div. 4) {1669} PROGRAMMING 102101 1100
11222 Binary String binary search greedy two pointers Statement C Educational Codeforces Round 128 (Rated for Div. 2) {1680} PROGRAMMING 102852
17145 Price Maximization binary search greedy math two pointers Statement E Codeforces Round 797 (Div. 3) {1690} PROGRAMMING Codeforces Round #797 (Div. 3) Editorial 1500
7695 Max GEQ Sum binary search constructive algorithms data structures divide and conquer implementation sortings two pointers Statement D CodeCraft-22 and Codeforces Round 795 (Div. 2) {1691} PROGRAMMING 1750.0 Editorial for CodeCraft-22 and Codeforces Round #795 (Div. 2)
35283 Binary Deque binary search implementation two pointers Statement E Codeforces Round 799 (Div. 4) {1692} PROGRAMMING Codeforces Round #799 (Div. 4) Editorial
2523 LCM Sum (easy version) binary search brute force combinatorics math number theory two pointers Statement E1 Codeforces Round 813 (Div. 2) {1712} PROGRAMMING 2000.0 Codeforces Round #813 (Div. 2) Editorial
14455 Fighting Tournament binary search data structures implementation two pointers Statement C Codeforces Round 814 (Div. 2) {1719} PROGRAMMING 1250.0 Codeforces Round #814 (Div. 1, Div. 2) Editorial
14657 Min-Max Array Transformation binary search greedy two pointers Statement C Educational Codeforces Round 134 (Rated for Div. 2) {1721} PROGRAMMING 106416
1994 Circular Mirror binary search combinatorics math two pointers Statement C COMPFEST 14 - Preliminary Online Mirror (Unrated, ICPC Rules, Teams Preferred) {1725} PROGRAMMING Tutorial
8643 Valiant's New Map binary search brute force data structures dp two pointers Statement D Codeforces Round 841 (Div. 2) and Divide by Zero 2022 {1731} PROGRAMMING 1500.0 Codeforces Round #841 (Div. 2) and Divide By Zero 2022 Editorial
7910 Sheikh (Easy version) binary search bitmasks greedy two pointers Statement C1 Codeforces Round 830 (Div. 2) {1732} PROGRAMMING 1000.0 108327 1800
3150 Sheikh (Hard Version) binary search bitmasks brute force greedy implementation two pointers Statement C2 Codeforces Round 830 (Div. 2) {1732} PROGRAMMING 1000.0 108327 2100
16628 Good Subarrays (Easy Version) binary search data structures two pointers Statement C1 Codeforces Round 825 (Div. 2) {1736} PROGRAMMING 1250.0 Codeforces Round #825 (Div. 2) Editorial
1493 Good Subarrays (Hard Version) binary search data structures two pointers Statement C2 Codeforces Round 825 (Div. 2) {1736} PROGRAMMING 2000.0 Codeforces Round #825 (Div. 2) Editorial
46785 Traffic Light binary search implementation two pointers Statement C Codeforces Round 828 (Div. 3) {1744} PROGRAMMING Codeforces Round #828 (Div. 3) Editorial
8601 Range = √Sum binary search brute force constructive algorithms math two pointers Statement D Codeforces Round 836 (Div. 2) {1758} PROGRAMMING 1750.0 Codeforces Round #836 (Div. 2) Editorial
4908 Watch the Videos binary search constructive algorithms two pointers Statement D 2022-2023 ICPC, NERC, Southern and Volga Russian Regional Contest (Online Mirror, ICPC Rules, Preferably Teams) {1765} PROGRAMMING 109642 1700
22376 Hossam and Friends binary search constructive algorithms dp two pointers Statement B Codeforces Round 837 (Div. 2) {1771} PROGRAMMING 1000.0 Codeforces Round #837 (Div. 2) Editorial
1444 Comfortably Numb binary search bitmasks data structures divide and conquer dsu strings trees two pointers Statement F Codeforces Round 845 (Div. 2) and ByteRace 2023 {1777} PROGRAMMING 2750.0 Codeforces Round #845 (Div. 2) and ByteRace 2023 Editorial
1451 Rectangle Shrinking binary search data structures greedy implementation two pointers Statement E VK Cup 2022 - Отборочный раунд (Engine) {1781} PROGRAMMING 2750.0 Tutorial
14959 Going to the Cinema binary search math sortings two pointers Statement B VK Cup 2022 - Отборочный раунд (Engine) {1781} PROGRAMMING 1000.0 Tutorial
4753 Moving Dots binary search brute force combinatorics dp math two pointers Statement D Codeforces Round 851 (Div. 2) {1788} PROGRAMMING 2250.0 Codeforces Round #851 (Div. 2) Editorial
23266 Scoring Subsequences binary search greedy math two pointers Statement C Codeforces Round 856 (Div. 2) {1794} PROGRAMMING 1250.0 Codeforces Round 856 (Div. 2) Editorial
2776 Petya, Petya, Petr, and Palindromes binary search data structures two pointers Statement D Codeforces Round 861 (Div. 2) {1808} PROGRAMMING 1750.0 Codeforces Round #861 (Div. 2) editorial 2100
2180 Vlad and the Nice Paths (hard version) binary search combinatorics data structures dp math two pointers Statement G2 Codeforces Round 863 (Div. 3) {1811} PROGRAMMING 114788
1059 Balancing Weapons binary search brute force two pointers Statement D Educational Codeforces Round 146 (Rated for Div. 2) {1814} PROGRAMMING Educational Codeforces Round 146 Editorial
4603 Range Sorting (Easy Version) binary search dp dsu greedy trees two pointers Statement B1 Codeforces Round 873 (Div. 1) {1827} PROGRAMMING 750.0 Codeforces Round #873 (Div. 1 & 2) Editorial 2000
2863 MEX of LCM binary search brute force data structures implementation math number theory two pointers Statement E Codeforces Round 879 (Div. 2) {1834} PROGRAMMING 2500.0 Codeforces Round #879 Editorial
1116 Lottery binary search brute force greedy math sortings two pointers Statement B Codeforces Round 880 (Div. 1) {1835} PROGRAMMING 1250.0 Codeforces Round 880 Editorial
2274 Max to the Right of Min binary search data structures divide and conquer dsu two pointers Statement E Educational Codeforces Round 152 (Rated for Div. 2) {1849} PROGRAMMING 118752
9343 Ntarsis' Set binary search implementation math two pointers Statement A Codeforces Round 887 (Div. 1) {1852} PROGRAMMING 500.0 Codeforces Round 887 (Div 1, Div 2) Tutorial
3235 Trees and Segments binary search brute force constructive algorithms data structures dp greedy two pointers Statement D Codeforces Round 893 (Div. 2) {1858} PROGRAMMING 2000.0 Codeforces Round #893 (Div. 2) Editorial 2200
8066 Andrey and Escape from Capygrad binary search data structures dp dsu greedy sortings two pointers Statement D Codeforces Round 892 (Div. 2) {1859} PROGRAMMING 1750.0 Video solutions from Geothermal.
13254 Colorful Table binary search data structures dp implementation math sortings two pointers Statement C CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!) {1870} PROGRAMMING 1500.0 CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!) Editorial
1306 Split binary search data structures divide and conquer math two pointers Statement D Codeforces Round 905 (Div. 1) {1887} PROGRAMMING 1250.0 Codeforces Round #905 (Div. 1, Div. 2, Div. 3) Editorial
5830 Set To Max (Hard Version) binary search constructive algorithms data structures dsu greedy implementation sortings two pointers Statement D2 Codeforces Round 914 (Div. 2) {1904} PROGRAMMING 750.0 Codeforces Round 914 (Div. 2) Editorial
29823 Collecting Game binary search dp greedy two pointers Statement B Codeforces Round 914 (Div. 2) {1904} PROGRAMMING 750.0 Codeforces Round 914 (Div. 2) Editorial
4735 Cyclic MEX binary search constructive algorithms data structures implementation math two pointers Statement D Codeforces Round 915 (Div. 2) {1905} PROGRAMMING 2000.0 Codeforces Round 915 (Div. 2) Editorial
6398 Blocking Elements binary search data structures dp greedy implementation two pointers Statement D Codeforces Round 922 (Div. 2) {1918} PROGRAMMING 2000.0 Codeforces Round #922 (Div. 2) Editorial
34990 Find the Different Ones! binary search brute force data structures dp greedy two pointers Statement D Codeforces Round 923 (Div. 3) {1927} PROGRAMMING 125597
21057 Equalize binary search greedy sortings two pointers Statement B Codeforces Round 924 (Div. 2) {1928} PROGRAMMING 1000.0 Codeforces Round 924 Editorial
7546 Rudolf and Imbalance binary search greedy two pointers Statement F Codeforces Round 933 (Div. 3) {1941} PROGRAMMING 127018
379 MEX Game 2 (Hard Version) binary search greedy two pointers Statement E2 Codeforces Round 934 (Div. 1) {1943} PROGRAMMING 1500.0 Codeforces Round #934 (Div1, Div2) Editorial
996 Long Way to be Non-decreasing binary search dfs and similar graphs implementation shortest paths two pointers Statement D Codeforces Round 942 (Div. 1) {1967} PROGRAMMING 1750.0 Tutorial 2800
17051 Cat, Fox and the Lonely Array binary search bitmasks data structures greedy math two pointers Statement B Codeforces Round 945 (Div. 2) {1973} PROGRAMMING 1000.0 Editorial for Codeforces Round #945 (Div. 2) 1300
4457 Cutting Game binary search brute force data structures implementation sortings two pointers Statement F Codeforces Round 946 (Div. 3) {1974} PROGRAMMING Codeforces Round #946 (Div. 3) Editorial 1900
5908 Invertible Bracket Sequences binary search combinatorics data structures divide and conquer implementation two pointers Statement D Educational Codeforces Round 166 (Rated for Div. 2) {1976} PROGRAMMING Educational Codeforces Round 166 Editorial
12617 Job Interview binary search dp greedy implementation two pointers Statement C Educational Codeforces Round 166 (Rated for Div. 2) {1976} PROGRAMMING Educational Codeforces Round 166 Editorial
1852 Manhattan Triangle binary search constructive algorithms data structures geometry graphs two pointers Statement E Codeforces Round 951 (Div. 2) {1979} PROGRAMMING 2500.0 Codeforces Round 951 (Div. 2) Editorial
22225 Boring Day binary search data structures dp greedy two pointers Statement C Codeforces Round 955 (Div. 2, with prizes from NEAR!) {1982} PROGRAMMING 1000.0 130839
1577 array-value binary search bitmasks data structures two pointers Statement F Codeforces Round 956 (Div. 2) and ByteRace 2024 {1983} PROGRAMMING 2500.0
13918 Hungry Games binary search data structures dp two pointers Statement C Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2) {1994} PROGRAMMING 1250.0 Video Tutorial
21262 Bouquet (Easy Version) binary search brute force greedy sortings sortings two pointers Statement B1 Codeforces Round 961 (Div. 2) {1995} PROGRAMMING 1000.0 Video Tutorial
10275 Bouquet (Hard Version) binary search data structures greedy math sortings two pointers Statement B2 Codeforces Round 961 (Div. 2) {1995} PROGRAMMING 500.0 Video Tutorial
2105 Eri and Expanded Sets binary search data structures number theory two pointers Statement C Codeforces Round 969 (Div. 1) {2006} PROGRAMMING 1500.0 Tutorial
5589 Yunli's Subarray Queries (easy version) binary search two pointers Statement G1 Codeforces Round 971 (Div. 4) {2009} PROGRAMMING Codeforces Round 971 (Div. 4) Editorial
5308 Speedbreaker binary search dp greedy implementation math two pointers Statement B Codeforces Round 975 (Div. 1) {2018} PROGRAMMING 750.0 Editorial of Codeforces Round 975 (Div. 1, Div. 2)
19393 New Game binary search brute force greedy implementation two pointers Statement C Educational Codeforces Round 170 (Rated for Div. 2) {2025} PROGRAMMING Educational Codeforces Round 170 Editorial
29092 Two Screens binary search greedy strings two pointers Statement A Educational Codeforces Round 170 (Rated for Div. 2) {2025} PROGRAMMING Educational Codeforces Round 170 Editorial
1937 The Endspeaker (Hard Version) binary search combinatorics data structures dp greedy implementation two pointers Statement D2 Codeforces Round 982 (Div. 2) {2027} PROGRAMMING 1000.0 Codeforces Round #982 (Div. 2) Editorial
7126 The Endspeaker (Easy Version) binary search dp graphs greedy implementation two pointers Statement D1 Codeforces Round 982 (Div. 2) {2027} PROGRAMMING 1250.0 Codeforces Round #982 (Div. 2) Editorial
10227 Alice's Adventures in Cutting Cake binary search dp greedy two pointers Statement C Codeforces Round 986 (Div. 2) {2028} PROGRAMMING 1500.0 Codeforces Round 986 (Div. 2) Editorial
1209 Orangutan Approved Subarrays binary search brute force data structures greedy two pointers Statement F Codeforces Round 979 (Div. 2) {2030} PROGRAMMING 2500.0 Codeforces Round 979 Editorial
6324 Genokraken binary search constructive algorithms data structures graphs interactive trees two pointers Statement D Codeforces Round 983 (Div. 2) {2032} PROGRAMMING 1750.0 Codeforces Round 983 (Div. 2) Editorial
16541 Trinity binary search math sortings two pointers Statement C Codeforces Round 983 (Div. 2) {2032} PROGRAMMING 1250.0 Codeforces Round 983 (Div. 2) Editorial
5900 Yet Another Real Number Problem binary search brute force data structures dp greedy implementation math two pointers Statement D Codeforces Global Round 27 {2035} PROGRAMMING 1500.0 Codeforces Global Round 27 Editorial
3010 Ardent Flames binary search data structures sortings two pointers Statement F Codeforces Round 988 (Div. 3) {2037} PROGRAMMING Video Tutorial
8496 Kevin and Competition Memories binary search data structures greedy sortings two pointers Statement D Codeforces Global Round 28 {2048} PROGRAMMING 1250.0 Tutorial
24618 Counting Pairs binary search sortings two pointers Statement D Codeforces Round 995 (Div. 3) {2051} PROGRAMMING 137623
2298 Kevin and Binary String (Easy Version) binary search brute force data structures dp greedy implementation strings two pointers Statement F1 IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) {2061} PROGRAMMING 2000.0 IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) Editorial
5134 Game With Triangles binary search data structures dp greedy math ternary search two pointers Statement D Codeforces Round 1000 (Div. 2) {2063} PROGRAMMING 2250.0 Codeforces Round 1000 (Div. 2) — Editorial
5982 Eating binary search bitmasks data structures greedy two pointers Statement D Codeforces Round 1005 (Div. 2) {2064} PROGRAMMING 1750.0 Codeforces Round 1005 (Div. 2) Editorial
723 We Be Summing binary search data structures two pointers Statement F Codeforces Round 1005 (Div. 2) {2064} PROGRAMMING 2750.0 Codeforces Round 1005 (Div. 2) Editorial
1683 Ads binary search greedy two pointers Statement C European Championship 2025 - Online Mirror (Unrated, ICPC Rules, Teams Preferred) {2068} PROGRAMMING 140239
7202 Palindrome Shuffle binary search greedy hashing strings two pointers Statement D Educational Codeforces Round 174 (Rated for Div. 2) {2069} PROGRAMMING 139774
3298 Canteen (Easy Version) binary search data structures flows greedy two pointers Statement B1 Codeforces Round 1012 (Div. 1) {2089} PROGRAMMING 1000.0 Codeforces Round 1012 (Div.1, Div. 2, based on THUPC 2025 — Finals) Editorial
1307 Canteen (Hard Version) binary search data structures greedy math two pointers Statement B2 Codeforces Round 1012 (Div. 1) {2089} PROGRAMMING 500.0 Codeforces Round 1012 (Div.1, Div. 2, based on THUPC 2025 — Finals) Editorial
3948 Shorten the Array binary search brute force data structures dfs and similar greedy strings trees two pointers Statement G Codeforces Round 1016 (Div. 3) {2093} PROGRAMMING Codeforces Round 1016 (Div. 3) Editorial
3463 23 Kingdom binary search data structures greedy ternary search two pointers Statement C Codeforces Round 1024 (Div. 1) {2101} PROGRAMMING 2000.0 142788
12589 Flower Boy binary search dp greedy two pointers Statement D Codeforces Round 1020 (Div. 3) {2106} PROGRAMMING Codeforces Round 1020 (Div. 3) Editorial
18137 Coloring Game binary search brute force greedy two pointers Statement C Educational Codeforces Round 180 (Rated for Div. 2) {2112} PROGRAMMING Educational Codeforces Round 180 — Editorial
15304 MEX Count binary search data structures greedy sortings two pointers Statement E Codeforces Round 1034 (Div. 3) {2123} PROGRAMMING Codeforces Round 1034 (Div. 3) Editorial
2536 Big Wins! (easy version) binary search binary search two pointers Statement G1 Codeforces Round 1037 (Div. 3) {2126} PROGRAMMING 144845
1216 Big Wins! (hard version) binary search data structures divide and conquer two pointers Statement G2 Codeforces Round 1037 (Div. 3) {2126} PROGRAMMING 144845
816 Submedians (Hard Version) binary search constructive algorithms data structures two pointers Statement E2 Codeforces Round 1039 (Div. 2) {2128} PROGRAMMING 1750.0 Codeforces Round #1039 — Editorial
4813 Unjust Binary Life binary search binary search data structures greedy greedy math two pointers Statement F Codeforces Round 1042 (Div. 3) {2131} PROGRAMMING Codeforces Round 1042 (Div. 3) Editorial
6757 Inversion Graph Coloring (Easy Version) binary search data structures dp two pointers Statement D1 Codeforces Round 1051 (Div. 2) {2143} PROGRAMMING 1750.0 Codeforces Round 1051 (Div. 2) Editorial
2980 Inversion Graph Coloring (Hard Version) binary search data structures dp two pointers Statement D2 Codeforces Round 1051 (Div. 2) {2143} PROGRAMMING 1000.0 Codeforces Round 1051 (Div. 2) Editorial
1245 No Mind To Think binary search greedy sortings ternary search two pointers Statement E Codeforces Round 1060 (Div. 2) {2154} PROGRAMMING 2500.0 Codeforces Round 1060 (Div. 2) Editorial
1489 Inverse Minimum Partition (Easy Version) binary search data structures dp greedy math two pointers Statement D1 Codeforces Round 1058 (Div. 1) {2159} PROGRAMMING 1500.0 Codeforces Round 1058 Editorial
2845 Locked Out binary search data structures dp graphs greedy implementation two pointers Statement D Pinely Round 5 (Div. 1 + Div. 2) {2161} PROGRAMMING 2250.0
11845 Quotient and Remainder binary search greedy two pointers Statement C Educational Codeforces Round 185 (Rated for Div. 2) {2170} PROGRAMMING Educational Codeforces Round 185 Editorial
11158 War Strategy binary search greedy math two pointers Statement C Hello 2026 {2183} PROGRAMMING 1500.0
10901 The Robotic Rush binary search implementation two pointers Statement E Codeforces Round 1074 (Div. 4) {2185} PROGRAMMING Codeforces Round 1074 (Div. 4) Editorial
1353 Comparable Permutations binary search greedy interactive sortings two pointers Statement C Codeforces Round 1073 (Div. 1) {2190} PROGRAMMING 1750.0 Codeforces Round 1073 (Div. 1, Div. 2) Editorial
22665 Monster Game binary search sortings two pointers Statement D Codeforces Round 1076 (Div. 3) {2193} PROGRAMMING Разбор Codeforces Round 1076 (Div. 3)
1337 Sum of Fractions binary search combinatorics greedy math two pointers Statement F Educational Codeforces Round 188 (Rated for Div. 2) {2204} PROGRAMMING Educational Codeforces Round 188 Editorial
3597 Zhily and Barknights binary search data structures dp math sortings two pointers Statement B Codeforces Round 1097 (Div. 1, Based on Zhili Cup 2026) {2223} PROGRAMMING 750.0 Codeforces Round 1097 (Div. 1, Div2, Based on Zhili Cup 2026) Tutorial
7954 Mental Monumental (Easy Version) binary search data structures greedy math two pointers Statement C Codeforces Round 1095 (Div. 2) {2226} PROGRAMMING 1500.0 Codeforces Round 1095 (Div. 2) Editorial
13675 Palindromex binary search brute force constructive algorithms data structures greedy implementation two pointers Statement D Codeforces Round 1096 (Div. 3) {2227} PROGRAMMING Codeforces Round 1096 (Div. 3) — Editorial
1437 Minimum Influence binary search data structures geometry greedy implementation math sortings two pointers Statement E Educational Codeforces Round 190 (Rated for Div. 2) {2230} PROGRAMMING Educational Codeforces Round 190 — Editorial
11746 Seating Arrangement (Easy Version) binary search dp greedy ternary search two pointers Statement C1 Codeforces Round 1101 (Div. 2) {2232} PROGRAMMING 750.0 Codeforces Round 1101 (Div. 2) — Editorial
8404 Seating Arrangement (Hard Version) binary search greedy ternary search two pointers Statement C2 Codeforces Round 1101 (Div. 2) {2232} PROGRAMMING 1000.0 Codeforces Round 1101 (Div. 2) — Editorial
1163 Revival binary search constructive algorithms data structures math two pointers Statement C Codeforces Round 1105 (Div. 1) {2239} PROGRAMMING 1500.0