문제
풀이
#include <iostream>
using namespace std;
void solve(void) {
int n;
cin >> n;
int ans = 0, i = 1;
while (n > 0) {
if (n < i) i = 1;
n -= i;
i++;
ans++;
}
cout << ans;
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
solve();
return 0;
}