编写一个程序,求出m×n的二维数组周边元素之和(m<10,n<10).

#include#define N 10#define M 10void main() { int i,j,m,n,s,a[N][M]; scanf("%d%d",&n,&m); for ( i=0;i<n;i++ ) for ( j=0;j<m;j++ ) scanf("%d",&a[i][j]); s=0; for ( i=0;i<n;i++ ) for ( j=0;j<m;j++ ) if ( i==0 || i