数组元素乘法结果

#include <iostream>

using namespace std;#define MAX 22int result[MAX];void findNum(int a[], int len){    int b[len], sum = 1;    for(int i=0; i<len; ++i)    {        b[i] = sum;        sum *= a[i];    }    sum = 1;    for(int i=len-1; i>=0; --i)    {        result[i] = b[i]*sum;        cout<<b[i]*sum<<" ";        sum *= a[i];    }}int main(){int data[3]={1,2,3};findNum(data, 3);cout<<endl;for(int i=0; i<3; ++i)        cout<<result[i]<<":";//system("pause");return 0;}