ALGORITMIA 2016-1 EX2 pregunta 6

#include <stdio.h>
#include <stdlib.h>
//El vertice 3
int grafo[6][6]={{1,1,1,0,0,1},
                 {1,0,1,1,0,0},
                 {0,0,0,0,0,0},
                 {0,1,1,1,0,1},
                 {1,0,1,0,0,0},
                 {0,1,1,1,0,0}};
int filaEsCeroycolumnaesUno(int vert,int nvertices){
    for (int j=0;j<nvertices;j++){
        if (vert==j && grafo[vert][j]==1)
            return 0;
        if (vert!=j && (grafo[j][vert]!=1 || grafo[vert][j]!=0))
            return 0;
    }
    return 1;
}

int existeij(int nvertices){
    for (int i=0;i<nvertices;i++){
        if (filaEsCeroycolumnaesUno(i,nvertices))
            return 1;
    }
    return 0;
}
int main(){
    int nvertices=6;
    printf("%d\n",existeij(nvertices));
    return 0;
}