Codeforces Round #673 (Div. 2) F. Graph and Queries (Consolidated search heuristic merge & cancel) - Code World

Codeforces Round #673 (Div. 2) F. Graph and Queries (Consolidated search heuristic merge & cancel)

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Codeforces Round #673 (Div. 2) F. Graph and Queries (Consolidated search heuristic merge & cancel)

Codeforces Round #673 (Div. 2) AE problem solution

Codeforces Round #673 (Div. 2)(AD) problem solution

Codeforces Round #673 (Div. 2) AE problem solution

Codeforces Round #619 (Div. 2) F

Codeforces Round #600 (Div. 2) D. Harmonious Graph

Codeforces Round #673 (Div. 2) AC (thinking, thinking, thinking + greed + holistic view)

Codeforces Round #563 (Div. 2) F. Ehab and the Big Finale

Educational Codeforces Round 71 (Rated for Div. 2)-F. Remainder Problem-技巧分块

Codeforces Round #597 (Div. 2) F. Daniel and Spring Cleaning 数位dp

Codeforces Round #701 (Div. 2) F. Copy or Prefix Sum (map优化dp)

Codeforces Round #632 (Div. 2)F. Kate and imperfection(逆向、贪心、因子)

Codeforces134Div.2-C (consolidated search)

Codeforces Round #614 (Div. 2)D Aroma's Search

[Summary of Problem Solving] Codeforces Round 673 (Div. 1)

Codeforces Round #499 (Div. 1) F. Tree

Codeforces Round #617 (Div. 3) F. Berland Beauty

Codeforces Round #686 (Div. 3) F. Array Partition

Codeforces Round #479 (Div. 3) F. Consecutive Subsequence

Codeforces Round #479 (Div. 3) F. Consecutive Subsequence

[Codeforces Round # 620 (Div. 2)] E. 1-Trees and Queries (tree, LCA, parity)

Codeforces Round # 673 (Div. 2) F. График и запросы (объединение и отмена объединенного эвристического поиска)

Codeforces Round # 589 (Div. 2) (e, f did not write)

Codeforces Round #530 (Div. 2)F Cookies

Educational Codeforces Round 149 (Rated for Div. 2)（A—D、F）

Codeforces Round # 586 (Div. 1 + Div. 2) D (construct a bipartite graph, thinking, takes several conclusions proof theory)

Codeforces Round #582 (Div. 3) G. Path Queries

D Merge Equals Educational Codeforces Round 42 (Rated for Div. 2) （STL ）

D. Harmonious Graph (Codeforces Round # 600 (Div. 2)) (disjoint-set thinking +)

Codeforces Round #692 (Div. 2) C. Peaceful Rooks (graph theory, and collection)

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