输出占一行，为一个整数，表示[x, y]范围内有多少组不同的整数满足勾股定理。c++，要写std命名空间，不要注释

```cpp #include <iostream> int main() { int x, y; std::cin >> x >> y; int count = 0; for (int a = x; a <= y; ++a) { for (int b = a; b <= y; ++b) { for (int c = b; c <= y; ++c) { if (a * a + b * b == c * c) { ++count; } } } } std::cout << count << std::endl; return 0; } ``` [2025-09-15 20:24:54 | AI问答 | 144点数解答]