A1150 Travelling Salesman Problem [模拟图]

在这里插入图片描述

#include<iostream>
#include<vector>
#include<map>
#include<string>
#include<cstring>
#include<cstdio>
#include<algorithm>
#include<set>
#include<queue>
#include<unordered_map>
#include<cmath>
using namespace std;
int G[201][201], ans = 99999999, endi;
int main()
{
	int n, m, t1, t2, t;
	cin >> n >> m;
	for (int i = 0; i < m; i++)
	{
		cin >> t1 >> t2 >> t;
		G[t1][t2] = t;
		G[t2][t1] = t;
	}
	int q,p;
	cin >> q; vector<int>v;
	for (int i=1; i <= q; i++)
	{
		cin >> p;
		int flag = 1, sum = 0; v.clear();
		set<int>s;
		for (int j = 0; j < p; j++)
		{
			cin >> t;
			v.push_back(t);
			s.insert(v[j]);
		}
		for (int j = 0; j < p - 1; j++)
		{
			if (G[v[j]][v[j + 1]] == 0)
				flag = 0;
			sum += G[v[j]][v[j + 1]];
		}
		if (flag == 0)
		{
			printf("Path %d: NA (Not a TS cycle)
", i);
		}
		else if (v[0] != v[p - 1] || s.size() != n)
		{
			printf("Path %d: %d (Not a TS cycle)
", i,sum);
		}
		else if (p != n + 1)
		{
			printf("Path %d: %d (TS cycle)
", i, sum);
			if (sum < ans)
			{
				ans = sum;
				endi = i;
			}
		}
		else
		{
			printf("Path %d: %d (TS simple cycle)
", i, sum);
			if (sum < ans) {
				ans = sum;
				endi = i;
			}
		}
	}
	printf("Shortest Dist(%d) = %d
", endi, ans);
	return 0;
}
原文地址:https://www.cnblogs.com/Hsiung123/p/13811948.html