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网格中的极大子矩形的另类解法 Educational Codeforces Round 80 (Rated for Div. 2)(A-E) 树状数组求后缀和 单调栈 Codeforces Round #578 (Div. 2) 二维差分 可做模板 Codeforces Round #612 (Div. 2) (A-D) Codeforces Round #592 (Div. 2) E cf1000E cf1242B cf1131D cf1041E
网格中的极大子矩形的另类解法
Educational Codeforces Round 80 (Rated for Div. 2)(A-E)
树状数组求后缀和
单调栈
Codeforces Round #578 (Div. 2) 二维差分 可做模板
Codeforces Round #612 (Div. 2) (A-D)
Codeforces Round #592 (Div. 2) E
cf1000E
cf1242B
cf1131D
cf1041E