poj3613:Cow Relays(倍增優化+矩陣乘法floyd+快速冪)
Cow Relays Time Limit: 1000MS Memory Limit: 65536K Total Submissi ...
Cow Relays Time Limit: 1000MS Memory Limit: 65536K Total Submissi ...
百度地圖的實時路況 https://nanti.jisuanke.com/t/11217 題意:d(u,v,w):從u到w,嚴格不經過v的路徑長度,計算每個d(u,v,w),求和,n 300 ...