문제
풀이
#include <cmath>
#include <iostream>
using namespace std;
int solve(void) {
int a, b, c; cin >> a >> b >> c;
if (a == 0) return c * c - b;
if (b == 0) return c * c - a;
if (c == 0) return sqrt(a + b);
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
cout << solve();
return 0;
}