输入四行五列的负整数，输出最小值数的下标

#include <stdio.h>
int main(){
int negs[4][5],i,j, min;
printf("Please key in 4 * 5 negative integers:\n");
for (i = 0; i < 4; i ++){
for (j = 0 ; j < 5; j ++){
scanf("%d", &negs[i][j]);
}
}
min = negs[0][0];
for (i = 0; i < 4; i ++){
for (j = 0 ; j < 5; j ++){
if(negs[i][j] < min) min = negs[i][j];
}
}
printf("The smallest number occurs at row %d, column %d.\n",i + 1, j + 1);
return 0;
}