题意:
求某一个办公室 到其他所有办公室的 总距离最短 办公室数 不超过10
输入:
多组输入,每组第一行为n (1 ≤ n ≤ 45),接下来n行是 (x, y, d),x到y的距离是d
输出:
办公室号 和 最短距离
Floyd水题 - -
AC代码如下:
//
// AOJ 0189 Convenient Location
//
// Created by TaoSama on 2015-03-20
// Copyright (c) 2015 TaoSama. All rights reserved.
//
#include <algorithm>
#include <cctype>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <iomanip>
#include <iostream>
#include <map>
#include <queue>
#include <string>
#include <set>
#include <vector>
#define CLR(x,y) memset(x, y, sizeof(x))
using namespace std;
const int INF = 0x3f3f3f3f;
const int MOD = 1e9 + 7;
const int N = 1e5 + 10;
int n, dp[15][15];
int main() {
#ifdef LOCAL
freopen("in.txt", "r", stdin);
// freopen("out.txt","w",stdout);
#endif
ios_base::sync_with_stdio(0);
while(cin >> n && n) {
int V = 0;
memset(dp, 0x3f, sizeof dp);
for(int i = 1; i <= n; ++i) {
int x, y, v; cin >> x >> y >> v;
dp[x][y] = dp[y][x] = v;
V = max(V, max(x, y));
}
for(int k = 0; k <= V; ++k)
for(int i = 0; i <= V; ++i)
for(int j = 0; j <= V; ++j)
dp[i][j] = min(dp[i][j], dp[i][k] + dp[k][j]);
int ans = INF, loc;
for(int i = 0; i <= V; ++i) {
int t = 0;
for(int j = 0; j <= V; ++j) {
if(i == j) continue;
t += dp[i][j];
}
if(t < ans) ans = t, loc = i;
}
cout << loc << ' ' << ans << endl;
}
return 0;
}