代码如下: #include<stdio.h>#include<cstring>#include<algorithm>usingnamespacestd;#defineinf 0x3f3f3f3f//表示两点之间无法到达时的距离constintmaxn=1e3+10;inta[maxn][maxn];//存储路径intd[maxn];//记录1到各点的最短距离intp[maxn];//标记已经求出最短路径的点intminn,k;//在每次比较中记录...
In order to make dijkstra work in this problem, you would have to visit every node again if the distance got updated, making the algorithm run in O(m2logn)O(m2logn). This is the same reason as to why dijkstra doesn't work with negative weights. Instead of dijkstra, this problem ...
I was trying to solveCSES Shortest Routes Iusing priority_queue. However, I faced TLE even though I was storing negative of distance in it. After a bit of reading onCP-Algo's Page, they said that The main difference to the implementation with set is that in many languages, including C++...
I was trying to solveCSES Shortest Routes Iusing priority_queue. However, I faced TLE even though I was storing negative of distance in it. After a bit of reading onCP-Algo's Page, they said that The main difference to the implementation with set is that in many languages, including C++...