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답안 #1112861

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1112861 2024-11-15T04:32:39 Z Pishka12 홀-짝 수열 (IZhO11_oddeven) C++14
0 / 100
 1 ms 336 KB 
#include <bits/stdc++.h>
#define ll long long
#define f first
#define s second
using namespace std;
 
int main() 
{
    ios_base::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
    ll n;
    cin>>n;
    n--;
    ll l = 0,r = 1e9,le = 0;
    while(l<=r) {
      ll m = (l+r)/2;
      if (m*(m+1)/2 + m > n) {
        r= m-1;
      }
      else {
        l = m+1;
        le = m;
      }
    }
    ll ans = 1;
    ans += le*(le+1) + le;
    n -= le*(le+1)/2 + le;
    if (n >= 1) {
      ans++;
      n--;
      ans+= n*2;
    }
    cout<<ans<<endl;
    return 0;
}

Subtask #1
0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Incorrect 1 ms 336 KB Output isn't correct
14 Halted 0 ms 0 KB -