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5147 GameGame bitmasks constructive algorithms dp games greedy math Statement B Codeforces Round 659 (Div. 1) {1383} PROGRAMMING 1000.0 Codeforces Round #659 Editorial
30242 XORwice bitmasks greedy math Statement A Codeforces Round 676 (Div. 2) {1421} PROGRAMMING 500.0 Codeforces Round #676 (Div. 2) Editorial
12974 Cobb bitmasks brute force greedy math Statement B Codeforces Round 735 (Div. 2) {1554} PROGRAMMING 1250.0 Editorial of Codeforces Round #735 (Div. 2) 1700
16349 And It's Non-Zero bitmasks greedy math Statement B Codeforces Global Round 18 {1615} PROGRAMMING 1000.0 Global Round 18 Editorial
17413 Ancient Civilization bitmasks greedy math Statement A Codeforces Round 765 (Div. 2) {1625} PROGRAMMING 500.0 Editorial of Codeforces Round #765 (Div. 2)
20148 Maximal AND bitmasks greedy math Statement H Codeforces Round 784 (Div. 4) {1669} PROGRAMMING 102101 1300
864 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
11115 Good Key, Bad Key bitmasks brute force dp greedy math Statement G Codeforces Round 806 (Div. 4) {1703} PROGRAMMING 104786
11259 Orray bitmasks brute force greedy math Statement G Codeforces Round 827 (Div. 4) {1742} PROGRAMMING 107962
15934 Absolute Maximization bitmasks constructive algorithms greedy math Statement A Codeforces Round 840 (Div. 2) and Enigma 2022 - Cybros LNMIIT {1763} PROGRAMMING 500.0 Codeforces Round #840 (Div. 2) and Enigma 2022 — Cybros LNMIIT Editorial
2412 The Harmonization of XOR bitmasks constructive algorithms greedy math Statement E TypeDB Forces 2023 (Div. 1 + Div. 2, Rated, Prizes!) {1787} PROGRAMMING 2250.0 TypeDB Forces 2023 (Div. 1 + Div. 2, Rated, Prizes!) Editorial
17955 Tenzing and Books bitmasks greedy math Statement B CodeTON Round 5 (Div. 1 + Div. 2, Rated, Prizes!) {1842} PROGRAMMING 500.0 CodeTON Round 5 Editorial
2473 Candy Party (Hard Version) bitmasks constructive algorithms dp graphs greedy implementation math Statement B2 Codeforces Round 896 (Div. 1) {1868} PROGRAMMING 750.0 Codeforces Round 896 (Div. 1, Div. 2) Editorial
7225 Candy Party (Easy Version) bitmasks constructive algorithms graphs greedy implementation math Statement B1 Codeforces Round 896 (Div. 1) {1868} PROGRAMMING 500.0 Codeforces Round 896 (Div. 1, Div. 2) Editorial
14531 Friendly Arrays bitmasks greedy math Statement B CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!) {1870} PROGRAMMING 750.0 CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!) Editorial
14557 XOR-distance bitmasks dp greedy implementation math Statement C Codeforces Round 922 (Div. 2) {1918} PROGRAMMING 1250.0 Codeforces Round #922 (Div. 2) Editorial
7719 Bitwise Operation Wizard bitmasks constructive algorithms greedy interactive math Statement A Codeforces Round 930 (Div. 1) {1936} PROGRAMMING 500.0 Codeforces Round 930 (Div. 1, Div. 2) Editorial
18094 Binary Colouring bitmasks constructive algorithms greedy math Statement B Codeforces Round 948 (Div. 2) {1977} PROGRAMMING 1250.0 129858 1100
5520 Turtle and an Incomplete Sequence bitmasks constructive algorithms greedy implementation math Statement C Codeforces Round 949 (Div. 2) {1981} PROGRAMMING 1500.0 Simplified Chinese Tutorial
17160 Fun Game bitmasks constructive algorithms greedy math Statement B Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2) {1994} PROGRAMMING 1000.0 Video Tutorial
22684 Find Minimum Operations bitmasks greedy math Statement A Codeforces Round 976 (Div. 2) and Divide By Zero 9.0 {2020} PROGRAMMING 500.0
9987 Trip to the Olympiad bitmasks constructive algorithms greedy math Statement C Hello 2025 {2057} PROGRAMMING 1500.0