Submission #5539009


Source Code Expand

#include <bits/stdc++.h>
using namespace std;
using lint = long long;
template<class T = int> using V = vector<T>;
template<class T = int> using VV = V< V<T> >;

int main() {
  cin.tie(nullptr); ios::sync_with_stdio(false);
  lint n, a; cin >> n >> a;
  if (a < 2e6) {
    V<lint> dp;
    int ys = a + 2;
    for (int x = 0; ; ++x) {
      dp.push_back(x);
      for (int y = ys; y < x; ++y) {
        if (dp[y - a] * (x - y) > dp[x]) {
          ys = y;
          dp[x] = dp[y - a] * (x - y);
        }
      }
      if (dp[x] >= n) {
        cout << x << '\n';
        return 0;
      }
    }
  }
  lint res = n;
  for (lint x = sqrt(n) - 2; x <= sqrt(n) + 2; ++x) {
    if (x < 2 or x >= n) continue;
    res = min(res, x + a + (n + x - 1) / x);
  }
  cout << res << '\n';
}

Submission Info

Submission Time
Task E - Cookies
User risujiroh
Language C++14 (GCC 5.4.1)
Score 500
Code Size 809 Byte
Status TLE
Exec Time 2103 ms
Memory 17768 KB

Judge Result

Set Name sample dataset1 dataset2
Score / Max Score 0 / 0 500 / 500 0 / 500
Status
AC × 3
AC × 27
AC × 70
TLE × 2
Set Name Test Cases
sample sample-01.txt, sample-02.txt, sample-03.txt
dataset1 sample-01.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 01-11.txt, 01-12.txt, 01-13.txt, 01-14.txt, 01-15.txt, 01-16.txt, 01-17.txt, 01-18.txt, 01-19.txt, 01-20.txt, 01-21.txt, 01-22.txt, 01-23.txt, 01-24.txt, 01-25.txt, 01-26.txt
dataset2 sample-01.txt, sample-02.txt, sample-03.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 01-11.txt, 01-12.txt, 01-13.txt, 01-14.txt, 01-15.txt, 01-16.txt, 01-17.txt, 01-18.txt, 01-19.txt, 01-20.txt, 01-21.txt, 01-22.txt, 01-23.txt, 01-24.txt, 01-25.txt, 01-26.txt, 02-01.txt, 02-02.txt, 02-03.txt, 02-04.txt, 02-05.txt, 02-06.txt, 02-07.txt, 02-08.txt, 02-09.txt, 02-10.txt, 02-11.txt, 02-12.txt, 02-13.txt, 02-14.txt, 02-15.txt, 02-16.txt, 02-17.txt, 02-18.txt, 02-19.txt, 02-20.txt, 02-21.txt, 02-22.txt, 02-23.txt, 02-24.txt, 02-25.txt, 02-26.txt, 02-27.txt, 02-28.txt, 02-29.txt, 02-30.txt, 02-31.txt, 02-32.txt, 02-33.txt, 02-34.txt, 02-35.txt, 02-36.txt, 02-37.txt, 02-38.txt, 02-39.txt, 02-40.txt, sample-01.txt, sample-02.txt, sample-03.txt
Case Name Status Exec Time Memory
01-01.txt AC 1 ms 256 KB
01-02.txt AC 1 ms 256 KB
01-03.txt AC 1 ms 256 KB
01-04.txt AC 1 ms 256 KB
01-05.txt AC 1 ms 256 KB
01-06.txt AC 1 ms 256 KB
01-07.txt AC 1 ms 256 KB
01-08.txt AC 1 ms 256 KB
01-09.txt AC 1 ms 256 KB
01-10.txt AC 1 ms 256 KB
01-11.txt AC 1 ms 256 KB
01-12.txt AC 10 ms 9196 KB
01-13.txt AC 8 ms 9068 KB
01-14.txt AC 1 ms 256 KB
01-15.txt AC 1 ms 256 KB
01-16.txt AC 1 ms 256 KB
01-17.txt AC 1 ms 256 KB
01-18.txt AC 1 ms 256 KB
01-19.txt AC 1 ms 256 KB
01-20.txt AC 1 ms 256 KB
01-21.txt AC 1 ms 256 KB
01-22.txt AC 1 ms 256 KB
01-23.txt AC 1 ms 256 KB
01-24.txt AC 1 ms 256 KB
01-25.txt AC 1 ms 256 KB
01-26.txt AC 1 ms 256 KB
02-01.txt AC 1 ms 256 KB
02-02.txt AC 1 ms 256 KB
02-03.txt AC 1 ms 256 KB
02-04.txt AC 1 ms 256 KB
02-05.txt AC 1 ms 256 KB
02-06.txt AC 1 ms 256 KB
02-07.txt AC 1 ms 256 KB
02-08.txt AC 1 ms 256 KB
02-09.txt AC 1 ms 256 KB
02-10.txt AC 1 ms 256 KB
02-11.txt AC 1 ms 256 KB
02-12.txt AC 1 ms 256 KB
02-13.txt AC 1 ms 256 KB
02-14.txt AC 1 ms 256 KB
02-15.txt AC 1 ms 256 KB
02-16.txt AC 1 ms 256 KB
02-17.txt AC 1 ms 256 KB
02-18.txt AC 1 ms 256 KB
02-19.txt AC 2 ms 384 KB
02-20.txt AC 8 ms 512 KB
02-21.txt AC 351 ms 1400 KB
02-22.txt TLE 2103 ms 17768 KB
02-23.txt AC 1 ms 256 KB
02-24.txt AC 1 ms 256 KB
02-25.txt AC 1 ms 256 KB
02-26.txt AC 1 ms 256 KB
02-27.txt AC 1 ms 256 KB
02-28.txt AC 1 ms 256 KB
02-29.txt AC 1 ms 256 KB
02-30.txt AC 1 ms 256 KB
02-31.txt AC 1 ms 256 KB
02-32.txt AC 1 ms 256 KB
02-33.txt AC 1 ms 256 KB
02-34.txt AC 1 ms 256 KB
02-35.txt AC 1 ms 256 KB
02-36.txt AC 1 ms 256 KB
02-37.txt AC 2 ms 384 KB
02-38.txt AC 17 ms 640 KB
02-39.txt TLE 2103 ms 9452 KB
02-40.txt AC 1 ms 256 KB
sample-01.txt AC 1 ms 256 KB
sample-02.txt AC 1 ms 256 KB
sample-03.txt AC 1 ms 256 KB