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10545 Bear and Prime Numbers binary search brute force data structures dp implementation math number theory Statement C Codeforces Round 226 (Div. 2) {385} PROGRAMMING Codeforces Round #226 (Div. 2) — Editorial 1800
5861 Vanya and Scales brute force dp greedy math meet-in-the-middle number theory Statement C Codeforces Round 308 (Div. 2) {552} PROGRAMMING Codeforces #308 (Div. 2) Editorial 1800
115 Math, math everywhere brute force dp math meet-in-the-middle number theory Statement G Codeforces Round 397 by Kaspersky Lab and Barcelona Bootcamp (Div. 1 + Div. 2 combined) {765} PROGRAMMING Codeforces Round #397 Editorial 2800
3282 My pretty girl Noora brute force dp greedy math number theory Statement D Codeforces Round 422 (Div. 2) {822} PROGRAMMING Codeforces Round #422 (Div. 2) Editorial 1800
14178 Pride brute force dp greedy math number theory Statement A Codeforces Round 446 (Div. 1) {891} PROGRAMMING Codeforces Round #446 Editorial 1600
2171 Kuro and GCD and XOR and SUM binary search bitmasks brute force data structures dp dsu greedy math number theory strings trees Statement D Codeforces Round 482 (Div. 2) {979} PROGRAMMING 1750.0 Codeforces Round #482 (Div. 2) Editorial 2200
4113 Recovering BST brute force dp math number theory trees Statement D Codeforces Round 505 (rated, Div. 1 + Div. 2, based on VK Cup 2018 Final) {1025} PROGRAMMING Codeforces Round #505 Editorial 2000
1499 Sasha and Interesting Fact from Graph Theory brute force combinatorics dp math trees Statement D Codeforces Round 539 (Div. 1) {1109} PROGRAMMING Codeforces Round #539 Editorial 2600
1162 Graph Traveler brute force data structures dfs and similar dp graphs implementation math number theory Statement F Codeforces Round 578 (Div. 2) {1200} PROGRAMMING Codeforces Round #578 (Div. 2) Editorial 2500
2946 Sum of Digits brute force constructive algorithms dp greedy math number theory Statement E Educational Codeforces Round 90 (Rated for Div. 2) {1373} PROGRAMMING Educational Codeforces Round 90 Editorial
2113 Digits brute force dp math number theory Statement D 2020-2021 ICPC, NERC, Northern Eurasia Onsite (Unrated, Online Mirror, ICPC Rules, Teams Preferred) {1510} PROGRAMMING nerc-2020-offline-tutorial.pdf
9246 Short Task brute force dp math number theory Statement G Codeforces Round 713 (Div. 3) {1512} PROGRAMMING Codeforces Round #713 (Div. 3) Editorial
5260 Up the Strip brute force dp math number theory Statement B Codeforces Round 740 (Div. 1, based on VK Cup 2021 - Final (Engine)) {1558} PROGRAMMING 1250.0 Codeforces Round #740 Editorial 1900
6087 Up the Strip (simplified version) brute force data structures dp math number theory Statement D1 Codeforces Round 740 (Div. 2, based on VK Cup 2021 - Final (Engine)) {1561} PROGRAMMING 1500.0 Codeforces Round #740 Editorial 1700
10500 Lucky Chains brute force dp greedy math number theory Statement D Educational Codeforces Round 139 (Rated for Div. 2) {1766} PROGRAMMING 110066
4030 Counting Rhyme brute force combinatorics dp math number theory sortings Statement D Codeforces Round 904 (Div. 2) {1884} PROGRAMMING 2500.0 Codeforces Round #904 (Div. 2) Editorial
1234 Nobody is needed brute force data structures dp math number theory Statement F Codeforces Round 936 (Div. 2) {1946} PROGRAMMING 2750.0 Codeforces Round #936 (Div. 2) Editorial
5864 GCD on a grid brute force dfs and similar dp math number theory Statement G Codeforces Round 938 (Div. 3) {1955} PROGRAMMING 128243
1616 Carousel of Combinations brute force combinatorics dp math number theory Statement E Codeforces Round 940 (Div. 2) and CodeCraft-23 {1957} PROGRAMMING 2250.0 Codeforces Round #940 and CodeCraft-23 (Div. 2) Editorial 2400
8011 Nikita and LCM brute force data structures dp greedy math number theory sortings Statement C Codeforces Round 948 (Div. 2) {1977} PROGRAMMING 1750.0 129858 1900
1002 Court Blue (Easy Version) brute force dfs and similar dp math number theory Statement F1 EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2) {2002} PROGRAMMING 2000.0 EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2) Editorial
575 Court Blue (Hard Version) brute force dp math number theory Statement F2 EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2) {2002} PROGRAMMING 1250.0 EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2) Editorial
4199 Prefix GCD brute force dp greedy math number theory Statement E Codeforces Round 973 (Div. 2) {2013} PROGRAMMING 2500.0 134298
3963 Expected Power bitmasks brute force dp math number theory probabilities Statement E Codeforces Round 976 (Div. 2) and Divide By Zero 9.0 {2020} PROGRAMMING 2000.0 Tutorial for Codeforces Round 976 (Div. 2) and Divide By Zero 9.0
5476 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
14807 Gellyfish and Flaming Peony brute force constructive algorithms dp greedy math number theory shortest paths Statement A Codeforces Round 1028 (Div. 1) {2115} PROGRAMMING 500.0 Codeforces Round 1028 (Div.1, Div.2) Editorial