#define MAX 4
#define SUB 2
int num[MAX] = { 1, 2, 3, 4 };
int mul = 1;
int total = 0;
void GetMul(int n, int s)
{
if (s == SUB)
{
printf("One Product is %d.\n", mul);
total += mul;
return;
}
else
{
if (n < MAX)
{
mul = mul*num[n];
GetMul(n+1, s+1);
mul = mul/num[n];
GetMul(n+1, s);
}
}
}
void main(void)
{
GetMul(0, 0);
printf("The Total Result is %d.\n", total);
}
建議舉壹反三