11403번 - 경로 찾기

https://www.acmicpc.net/problem/11403

11403번: 경로 찾기

#include <iostream>
using namespace std;
int W[101][101] = {0, };
int main()
{
    int N, k, i, j;
    cin >> N;
    for(i=1; i<=N; i++)
    {
        for(j=1; j<=N; j++)
        {
            cin >> W[i][j];
        }
    }
    //Floyd-Warshall
    for(k=1; k<=N; k++)
    {
        for(i=1; i<=N; i++)
        {
            for(j=1; j<=N; j++)
            {
                if(W[i][j] == 1 || (W[i][k] == 1 && W[k][j] == 1))
                {
                    W[i][j] = 1;
                }
            }
        }
    }
    for(i=1; i<=N; i++)
    {
        for(j=1; j<=N; j++)
        {
            cout << W[i][j] << " ";
        }
        cout << '\n';
    }
    return 0;
}