#include <stdio.h>
int main()
{
    int a[3][4],u[3],v[3];
    int i,j,t,k,l;
    for(i=0;i<3;i++)
        for(j=0;j<4;j++)
            scanf("%d",&a[i][j]);//printf("%d",a[i][j]);
        for(i=0;i<3;i++)  
            for(t=a[i][0],j=0;j<4;j++)
                if(t<a[i][j])
                {
                    t=a[i][j];
                    u[i]=i;
                    v[i]=j;
                }


         for(j=0;j<3;j++)        
                {  
                    k=v[j];
                    l=u[j];
                    for(i=0;i<3;i++)   
                        if(a[l][k]>a[i][k])
                            break;
                if(i==3)
                {
                    printf("%d\n",a[l][k]);
                    break;
                }
        }
if(j==3)
printf("NO\n");
return 0;
}
红色就是调试时,弹出运行中断的地方;
求解,,我想知道错在哪里;

没人理我