백준 4153 c++

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

int main(void)
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);

	int a, b, c, A, B, C;
	vector<int>tri(3, 0);

	while (1)
	{
		cin >> a >> b >> c;
		if (a == 0 && b == 0 && c == 0)
		{
			break;
		}
		tri[0] = a;
		tri[1] = b;
		tri[2] = c;
		sort(tri.begin(), tri.end());
		A = tri[0] * tri[0];
		B = tri[1] * tri[1];
		C = tri[2] * tri[2];
		if (A + B == C)
		{
			cout << "right\n";
		}
		else
		{
			cout << "wrong\n";
		}
	}

	return 0;
}