N的乘积

#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
#include <string.h>

int main()
{
    int i = 0;
    int n = 0;
    int a = 0;
    int ret = 0;
    int num1 = 0;
    int ret1 = 1;
    int ret2 = 0;
    for (n = 1; n <= 10;n++)
    {
        for (i = 1,ret1 = 1; i <= n; i++)
        {
            ret1 = ret1 * i;
        }
        ret2 = ret1 + ret2;
    }
    printf("%d\n", ret2);

    for (a= 1,ret=1; a <=10; a++)
    {
        ret = ret*a;
        num1 = ret + num1;
    }   
    printf("%d\n", num1);
    return 0;
}