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自然万物都趋向从有序变得无序
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codeforces
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2017
08-19
Bear in the Field CodeForces - 385E 矩阵快速幂
08-19
Yet Another Number Sequence CodeForces - 392C 矩阵快速幂
08-12
Jzzhu and Sequences CodeForces - 450B (矩阵快速幂)
08-12
Biridian Forest CodeForces - 329B (逆向bfs)
08-12
Magic Five CodeForces - 327C
08-12
Prime Matrix CodeForces - 271B
08-12
Circular RMQ CodeForces - 52C(线段树)