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17016 Stairs brute force constructive algorithms greedy implementation math two pointers Statement B Codeforces Round 671 (Div. 2) {1419} PROGRAMMING 750.0 Codeforces Round #671 Editorial
3081 Mocha and Diana (Hard Version) brute force constructive algorithms dfs and similar dsu graphs greedy trees two pointers Statement D2 Codeforces Round 738 (Div. 2) {1559} PROGRAMMING 1500.0 Tutorial (en) 2500
22718 Quality vs Quantity brute force constructive algorithms greedy sortings two pointers Statement B Codeforces Round 774 (Div. 2) {1646} PROGRAMMING 1000.0 Codeforces Round #774 (Div. 2) Editorial 800
3644 MEX vs DIFF brute force constructive algorithms data structures greedy two pointers Statement E Codeforces Round 792 (Div. 1 + Div. 2) {1684} PROGRAMMING 1750.0 Codeforces Round #792 (Div. 1 + Div. 2) Editorial 2100
3209 Trees and Segments binary search brute force constructive algorithms data structures dp greedy two pointers Statement D Codeforces Round 893 (Div. 2) {1858} PROGRAMMING 2000.0 Codeforces Round #893 (Div. 2) Editorial 2200
6452 Longest Max Min Subsequence brute force constructive algorithms greedy two pointers Statement D Codeforces Round 967 (Div. 2) {2001} PROGRAMMING 2000.0 Video Tutorial
645 Turtle and Inversions (Hard Version) brute force constructive algorithms data structures dp greedy two pointers Statement E2 Codeforces Round 968 (Div. 2) {2003} PROGRAMMING 1000.0 sol-zh.pdf
5880 Non Prime Tree brute force constructive algorithms dfs and similar greedy number theory trees two pointers Statement D Codeforces Round 992 (Div. 2) {2040} PROGRAMMING 2000.0 Codeforces Round #992 (Div.2) Editorial
14767 Kevin and Geometry brute force constructive algorithms data structures geometry greedy implementation math two pointers Statement B IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) {2061} PROGRAMMING 1000.0 IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) Editorial
11504 Palindromex binary search brute force constructive algorithms data structures greedy implementation two pointers Statement D Codeforces Round 1096 (Div. 3) {2227} PROGRAMMING Codeforces Round 1096 (Div. 3) — Editorial