View Code of Problem 90

#include<iostream>
#include<cmath>
#include<string>
#include<sstream>
using namespace std;
bool isZhenshu(float a) {
	int b = a;
	if (a == b)return true;
	else return false;
}
int main() {
	int bg, end;
	string a;
	getline(cin, a);
	for (int i = 0; i < a.size(); i++)
	{
		if (a[i] == ',') {
			bg = stoi(a.substr(0,i));
			end = stoi(a.substr(i + 1, a.size() - i));
		}
	}
	float temp;
	for (int i = bg; i <=end; i++)
	{
		for (int j = i; j <=end; j++)
		{
			temp = sqrt(i * i + j * j);
			if (temp <=end && isZhenshu(temp)) {
				cout << i << "^2+" << j << "^2+=" << (int)temp << "^2"<<endl;
			}
		}
	}
	
}