下面程序的输出为：
#include <iostream>
using namespace std;
int main() {
const int N = 30;
int cnt = 0;
for (int a = 1; a <= N; a++)
for (int b = a; a + b <= N; b++)
for (int c = b; a + b + c <= N; c++)
if (a * a + b * b == c * c)
cnt++;
cout << cnt << endl;
return 0;
}
- A. 3
- B. 6
- C. 11
- D. 22
正确答案：A