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2560 Stripe 2 binary search dp sortings Statement C Codeforces Alpha Round 21 (Codeforces format) {21} PROGRAMMING 2300
4628 Blood Cousins Return binary search data structures dfs and similar dp sortings Statement E Codeforces Round 151 (Div. 2) {246} PROGRAMMING Codeforces Round #151 (Div. 2) Tutorial 2300
12430 Physics Practical binary search dp sortings two pointers Statement B Codeforces Round 154 (Div. 2) {253} PROGRAMMING Codeforces Round #154 (Div. 2) — tutorial 1400
4270 Pillars binary search data structures dp sortings trees Statement E Codeforces Round 271 (Div. 2) {474} PROGRAMMING Codeforces Round #271 (Div. 2) Editorial 2200
2485 Skills binary search brute force dp greedy sortings two pointers Statement B Codeforces Round 339 (Div. 1) {613} PROGRAMMING Tutorial 2200
1563 Expected diameter of a tree binary search brute force dfs and similar dp sortings trees Statement D Codeforces Round 411 (Div. 1) {804} PROGRAMMING Codeforces Round #411 Editorial 2600
8302 Office Keys binary search brute force dp greedy sortings Statement A Codeforces Round 424 (Div. 1, rated, based on VK Cup Finals) {830} PROGRAMMING Codeforces Round #424 Editorial 1900
1175 Guard Duty (medium) binary search dp greedy sortings Statement E2 Helvetic Coding Contest 2018 online mirror (teams allowed, unrated) {958} PROGRAMMING helvetic-coding-contest-2018-editorial.pdf 2300
1007 Morse Code binary search data structures dp hashing sortings string suffix structures strings Statement C Codeforces Round 542 [Alex Lopashev Thanks-Round] (Div. 1) {1129} PROGRAMMING 65520 2300
1865 Culture Code binary search combinatorics data structures dp shortest paths sortings Statement E Educational Codeforces Round 69 (Rated for Div. 2) {1197} PROGRAMMING E 2300
8194 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
4201 A Game with Traps binary search dp greedy sortings Statement D Educational Codeforces Round 77 (Rated for Div. 2) {1260} PROGRAMMING Educational Codeforces Round 77 Editorial 1900
11495 New Year and Ascent Sequence binary search combinatorics data structures dp implementation sortings Statement B Hello 2020 {1284} PROGRAMMING Hello 2020 Editorial 1500
11017 Odd-Even Subsequence binary search dp greedy implementation sortings Statement D Codeforces Round 651 (Div. 2) {1370} PROGRAMMING 2000.0 Editorial — Codeforces Round #651
4693 Searchlights binary search brute force data structures dp geometry implementation sortings Statement D Grakn Forces 2020 {1408} PROGRAMMING 2000.0 Grakn Forces -- Editorial
8497 Two Platforms binary search dp sortings two pointers Statement E Codeforces Round 667 (Div. 3) {1409} PROGRAMMING Codeforces Round #667 (Div. 3) Editorial
11248 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
3866 Travelling Salesman Problem binary search data structures dp greedy shortest paths sortings Statement C Codeforces Round 712 (Div. 1) {1503} PROGRAMMING 1250.0 T 2200
3357 Telepanting binary search data structures dp sortings Statement F Codeforces Global Round 15 {1552} PROGRAMMING 1500.0 Editorial of Global Round 15
5332 For Gamers. By Gamers. binary search dp math sortings two pointers Statement D Educational Codeforces Round 125 (Rated for Div. 2) {1657} PROGRAMMING 101161
30892 Yet Another Problem About Pairs Satisfying an Inequality binary search data structures dp greedy sortings Statement F Codeforces Round 806 (Div. 4) {1703} PROGRAMMING 104786
1435 Doremy's Number Line binary search dp greedy sortings Statement E Codeforces Global Round 24 {1764} PROGRAMMING 2250.0 Codeforces Global Round 24 Editorial
4125 Music Festival binary search data structures dp greedy sortings Statement C Codeforces Round 857 (Div. 1) {1801} PROGRAMMING 1250.0 Codeforces Round #857 Editorial
8039 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.
13182 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
9844 Messenger in MAC binary search brute force constructive algorithms data structures dp sortings Statement C Codeforces Round 932 (Div. 2) {1935} PROGRAMMING 1500.0 Codeforces Round #932 (Div. 2) Editorial
5560 Small Operations binary search bitmasks brute force dfs and similar dp math number theory sortings Statement F Codeforces Round 1027 (Div. 3) {2114} PROGRAMMING 143268
2288 Ice Baby binary search brute force data structures dp implementation sortings Statement H Codeforces Round 1032 (Div. 3) {2121} PROGRAMMING Codeforces Round 1032 (Div. 3) Editorial
3268 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