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1527 Geometry Horse greedy implementation sortings two pointers Statement C Codeforces Round 115 {175} PROGRAMMING Codeforces Round #115 — editorial A-E 1600
785 Volcanoes binary search implementation sortings two pointers Statement B Codeforces Round 225 (Div. 1) {383} PROGRAMMING Tutorial 2200
3811 Multitasking greedy implementation sortings two pointers Statement B Codeforces Round 225 (Div. 2) {384} PROGRAMMING Codeforces Round #225 — Editorial 1500
7527 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
10676 USB vs. PS/2 greedy implementation sortings two pointers Statement B Educational Codeforces Round 17 {762} PROGRAMMING Tutorial 1400
1316 Bamboo Partition brute force data structures implementation math number theory sortings two pointers Statement C Codeforces Round 424 (Div. 1, rated, based on VK Cup Finals) {830} PROGRAMMING Codeforces Round #424 Editorial 2500
2009 Rooter's Song constructive algorithms data structures geometry implementation sortings two pointers Statement B Codeforces Round 431 (Div. 1) {848} PROGRAMMING Codeforces Round #431 Editorial 2100
5394 Sorting the Coins dsu implementation sortings two pointers Statement B Codeforces Round 441 (Div. 1, by Moscow Team Olympiad) {875} PROGRAMMING Codeforces Round #441. Editorial. 1500
8379 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
2828 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
17178 Dominated Subarray greedy implementation sortings strings two pointers Statement C Educational Codeforces Round 76 (Rated for Div. 2) {1257} PROGRAMMING Educational Codeforces Round 76 Editorial 1200
17803 Air Conditioner dp greedy implementation sortings two pointers Statement C Codeforces Round 620 (Div. 2) {1304} PROGRAMMING 1500.0 Codeforces Round #620 (Div. 2) Editorial 1500
4581 Kate and imperfection greedy implementation math number theory sortings two pointers Statement F Codeforces Round 632 (Div. 2) {1333} PROGRAMMING 2500.0 Codeforces Round #632 (Div. 2) editorial
6274 Perform Easily data structures dp implementation sortings two pointers Statement C Technocup 2021 - Elimination Round 1 {1413} PROGRAMMING 1500.0 Codeforces Round 679 (Div. 1, Div. 2) and Technocup Round 1 editorial
17491 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
11429 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
5145 Cheap Dinner data structures dp implementation sortings two pointers Statement E Educational Codeforces Round 104 (Rated for Div. 2) {1487} PROGRAMMING 87873
16454 Air Conditioners dfs and similar dp implementation shortest paths sortings two pointers Statement E Codeforces Round 731 (Div. 3) {1547} PROGRAMMING Codeforces Round #731 (Div. 3) Editorial
8344 Seating Arrangements (hard version) data structures greedy implementation sortings two pointers Statement D2 Codeforces Global Round 16 {1566} PROGRAMMING 1000.0 Codeforces Global Round 16 Editorial
4609 Inconvenient Pairs data structures implementation sortings two pointers Statement D Educational Codeforces Round 113 (Rated for Div. 2) {1569} PROGRAMMING 94721
1579 Red-Blue Matrix constructive algorithms data structures hashing implementation sortings two pointers Statement D Educational Codeforces Round 116 (Rated for Div. 2) {1606} PROGRAMMING 96454
2804 Not Escaping data structures dp implementation shortest paths sortings two pointers Statement E Codeforces Round 766 (Div. 2) {1627} PROGRAMMING 2000.0 Codeforces Round #766 (Div. 2) Editorial
20287 Longest Strike data structures greedy implementation sortings two pointers Statement F Codeforces Round 790 (Div. 4) {1676} PROGRAMMING Codeforces Round #790 (Div. 4) Editorial
17746 Lex String brute force greedy implementation sortings two pointers Statement A Codeforces Round 798 (Div. 2) {1689} PROGRAMMING 500.0 Editorial for Codeforces Round #798 (Div. 2)
7547 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)
4254 The Butcher greedy implementation sortings two pointers Statement B Codeforces Round 866 (Div. 1) {1819} PROGRAMMING 1250.0 Codeforces Round #866 (Div.1, Div.2, based on Lipetsk Team Olympiad) Editorial
4085 Vlad and the Mountains data structures dsu graphs implementation sortings trees two pointers Statement G Codeforces Round 888 (Div. 3) {1851} PROGRAMMING 118667
13160 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
5757 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
4418 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
5663 New Year's Gifts data structures greedy implementation sortings two pointers Statement E Educational Codeforces Round 186 (Rated for Div. 2) {2182} PROGRAMMING Educational Codeforces Round 186 Editorial
16345 Array and Permutation implementation sortings two pointers Statement B Codeforces Round 1079 (Div. 2) {2197} PROGRAMMING 1000.0
1135 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