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1833 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
7519 Sheikh (Easy version) binary search bitmasks greedy two pointers Statement C1 Codeforces Round 830 (Div. 2) {1732} PROGRAMMING 1000.0 108327 1800
3058 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
16778 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
5819 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