fireworks99

keep hungry keep foolish

连通图の缩点

HDU 1281 Chessboard game(Bipartite graph match) 2020-04-27

HDU 4685 Prince and Princess(bipartite graph match and shrink nodes) 2020-04-25

HDU 4635 Strongly connected(shrink nodes) 2020-04-25

POJ 3177 Redundant Paths(shrink nodes and bridges) 2020-04-24

POJ 1236 Network of Schools(强连通+缩点) 2019-07-27

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