#include <iostream>
#include <vector>
#include <algorithm>
#include <limits>
#include <iomanip>
using namespace std;
const int INF = INT_MAX;
void Floyd(int n, vector<vector<int>> &dist, vector<vector<int>> &path) {
// 初始化path
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
path[i][j] = j;
}
}
//核心部分
for (int k = 0; k < n