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3460 Perfect Triples bitmasks brute force constructive algorithms divide and conquer greedy implementation math Statement C Codeforces Round 633 (Div. 1) {1338} PROGRAMMING 1500.0 Editorial
2687 Two Different bitmasks constructive algorithms divide and conquer greedy Statement F Grakn Forces 2020 {1408} PROGRAMMING 2500.0 Grakn Forces -- Editorial
1543 Defender of Childhood Dreams bitmasks constructive algorithms divide and conquer Statement F Technocup 2022 - Elimination Round 1 {1583} PROGRAMMING 2750.0 Editorial for Technocup 2022 — Elimination Round 1 and Codeforces Round #749 (Div. 1+Div. 2)
968 Anti-Theft Road Planning bitmasks constructive algorithms divide and conquer greedy interactive math Statement F Codeforces Round 785 (Div. 2) {1673} PROGRAMMING 3250.0 Codeforces Round #785 (Div. 2) Editorial
4826 Nene and the Mex Operator bitmasks brute force constructive algorithms divide and conquer dp greedy implementation Statement D Codeforces Round 939 (Div. 2) {1956} PROGRAMMING 1750.0 [Editorial] Codeforces Round 939 (Div. 2)
4211 Max Sum OR (Hard Version) bitmasks constructive algorithms divide and conquer greedy Statement D2 Codeforces Round 1052 (Div. 2) {2146} PROGRAMMING 1000.0 Codeforces Round 1052 (Div. 2) Editorial
10942 Max Sum OR (Easy Version) bitmasks constructive algorithms divide and conquer greedy trees Statement D1 Codeforces Round 1052 (Div. 2) {2146} PROGRAMMING 1500.0 Codeforces Round 1052 (Div. 2) Editorial