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2238 Subordinates constructive algorithms data structures graphs greedy sortings Statement E Technocup 2017 - Elimination Round 2 {729} PROGRAMMING Technocup 2017 — Elimination Round 2 (and Codeforces Round 380) Editorial 2000
1953 Permutation recovery constructive algorithms data structures dfs and similar graphs greedy math sortings Statement C Codeforces Round 559 (Div. 1) {1158} PROGRAMMING 66993 2300