computer system5

//ex11
#include "stdio.h"
int sum(int a[],int n){ 
    int i,sum=0;
    for (i=0;i<n;i++)
        sum+=a[i]; 
    return sum;
}
void main(){  
    int a[3]={1,2,3},n=3,x;
    x=sum(a,n);
    printf("sum=%d\n",sum);     
}