六度空间（C++）

目录

题目： 

输入、输出格式： 

 代码：

运行结果：

 

题目： 

输入、输出格式： 

 代码：

#include
#include
using namespace std;
int g[10005][10005];
float n, k;
typedef struct node
{
	int data;
	int w = 0;
}node;
void warshall()//传递闭包
{
	for (int k = 1; k <= n; k++)
		for (int i = 1; i <= n; i++)
			for (int j = 1; j <= n; j++)
			{
				if (g[i][k] && g[k][j])//连通
				{
					if (i == j)
						continue;
					if (g[i][j] == 0 || g[i][j] > g[i][k] + g[k][j])/没有直接连通或者新通路距离小于之前通路
						g[i][j] = g[i][k] + g[k][j];
				}
			}
}
bool cmp(node a, node b)
{
	return a.w < b.w;
}
int main()
{
	cin >> n >> k;
	for (int i = 1; i <= n; i++)
		for (int j = 1; j <= n; j++)
			g[i][j] = 0;
	for (int i = 0; i < k; i++)
	{
		int v1, v2;
		cin >> v1 >> v2;
		g[v1][v2] = 1;
		g[v2][v1] = 1;
	}
	warshall();
	/*for (int i = 1; i <= n; i++)//输出邻接矩阵
	{
		for (int j = 1; j <= n; j++)
			cout << g[i][j] << " ";
		cout << endl;
	}*/
	float ans[10005] ;
	for (int i = 1; i <= n; i++)
	{
		ans[i] = 0;
		for (int j = 1; j <= n; j++)
		{
			if (i == j)
				ans[i]++;
			if (g[i][j]>0 && g[i][j] <= 6)//符合条件
				ans[i]++;
		}
	}
	for (int i = 1; i <= n; i++)
		printf("%d:% .2f%%\n", i, ans[i] / n * 100);
}

运行结果：