문제
풀이
#include <iostream>
using namespace std;
inline int calc(int x) {
return (x / 100 + x % 100) * (x / 100 + x % 100);
}
void solve(void) {
int x; cin >> x;
do x++; while (x < 10000 && x != calc(x));
cout << (x == 10000 ? -1 : x);
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
solve();
return 0;
}