有下列程序
#include
#define M 3
int f(int a[][M])
{ int i,y=0;
for(i=0;iy+=a[i][i]+a[i][M-i-1];
for(i=1;iy+=a[0][i]+a[M-1][i];
for(i=0;ia[i][i]=a[i][i]*a[i][i];
return y;
}
main()
{ int y,x[M][M]={{11,21,13},
{5,6,17},
{9,1,11}};
y=f(x);
printf("%d,",y);
printf("%d,%d",x[2][M-2],x[M-1][M-1]);
}
执行后的输出结果是______。