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Problem 1103 >> 输入描述不完整
medalplus @ 2017-08-13 08:34:20
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A description of the form "A a b " (for a<b) denotes a country road between villages a and b being transformed into a motorway in that particular moment.
A a b表示a到b的路被改成了公路,保证a<b
A description of the from "W a " denotes Byteasar's trip from Bitburg to village a.
W a表示查询a到根节点的最短路径上有多少条路是土路


Kvar_ispw17 @ 2017-10-09 16:53:16
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Thanks!
cnlarryzhong @ 2017-11-25 10:53:46
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谢谢!
Pic @ 2017-11-25 14:40:21
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谢谢!
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