c语言二维数组求最大值

#include<stdio.h>
int main()
{
    int i,j,row=0,colum=0,max;
    int a[3][4]={{1,2,3,4},{9,8,7,6},{-10,10,-5,2}};
    max=a[0][0];
for (i=0;i<=2;i++)
{
    for (j=0;j<=3;j++)
    {
        if (a[i][j]>max)
        {
            max=a[i][j];
            row=i;
            colum=j;
        }
    }
}
printf("max=%d,row=%d,colum=%d",max,row,colum);
printf("\n");

}