P_3_Gumball_Machine.cpp
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using i128 = __int128;
const int inf = 1e9;
const ll INF = 1e18; //❄️
int main() {
ios::sync_with_stdio(0); cin.tie(0);
int n; cin >> n;
if (n == 0) {
cout << 0 << '\n';
return 0;
}
int ans = n + 10;
for (int i = 1; i * i <= n; i++) {
if (n % i == 0) {
ans = min(ans, i + n / i);
}
}
cout << ans << '\n';
return 0;
}