Cod sursa(job #2240830)

Utilizator mihaimusat.1998Musat Mihai-Robert mihaimusat.1998 Data 14 septembrie 2018 10:36:03
Problema Floyd-Warshall/Roy-Floyd Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.88 kb
#include <cstdio>
#include <algorithm>

#define NMAX 101
#define inf 1000000

using namespace std;

int n;
int a[NMAX][NMAX];

void RoyFloyd() {
    for(int k=0;k<n;k++) {
        for(int i=0;i<n;i++) {
            for(int j=0;j<n;j++) {
                a[i][j]=min(a[i][j],a[i][k]+a[k][j]);
            }
        }

    }
}

int main()
{
    freopen("royfloyd.in","r",stdin);
    freopen("royfloyd.out","w",stdout);

    scanf("%d",&n);
    for(int i=0;i<n;i++) {
        for(int j=0;j<n;j++) {
            scanf("%d",&a[i][j]);
            if(a[i][j]==0) a[i][j]=inf;
        }
    }

    RoyFloyd();

    for(int i=0;i<n;i++) {
        a[i][i]=0;
    }

    for(int i=0;i<n;i++) {
        for(int j=0;j<n;j++) {
            if(a[i][j]!=inf) printf("%d ",a[i][j]);
            else printf("0");
        }
        printf("\n");
    }

    return 0;
}