Submission #995133


Source Code Expand

#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <cmath>
#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <queue>
#include <map>
#define F first
#define S second
using namespace std;
typedef long long ll;
ll n,a;

ll ka[1111111];

ll co(ll p,ll x){
  return ka[x]*(p-x-a);
}

int main(void){
  cin >> n >> a;
  
  if(n > 1111111) return 0;

  for(int i = 0; i <= a; i++) ka[i] = 1;
  for(int i = 1; a+i < 1111111; i++){
    ka[a+i] = i;
    ll lb = a+1;
    ll ub = a+i;
    //for(int j = 0; j < 100; j++){
    while(ub-lb>2){
      ll ma = (lb+lb+ub)/3;
      ll mb = (lb+ub+ub)/3;
      ll mma = co(a+i,ma);
      ll mmb = co(a+i,mb);
      if(mma <= mmb){
	lb = ma;
      }else{
	ub = mb;
      }
      //cout << lb << " " << ub << endl;
    }
    //cout << "hoge" << endl;
    ka[a+i] = max(ka[a+i],max(co(a+i,(lb+ub)/2),max(co(a+i,lb),co(a+i,ub))));
  }

  ll ans=1LL<<60;
  for(int i = 0; i < 1111111; i++){
    ans = min(ans,((n+ka[i]-1)/ka[i])+i);
  }
  cout << ans << endl;
}

Submission Info

Submission Time
Task E - Cookies
User gotto
Language C++14 (GCC 5.4.1)
Score 0
Code Size 1093 Byte
Status WA
Exec Time 577 ms
Memory 8960 KB

Judge Result

Set Name sample dataset1 dataset2
Score / Max Score 0 / 0 0 / 500 0 / 500
Status
AC × 2
WA × 1
AC × 26
WA × 1
AC × 27
WA × 41
RE × 1
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
Case Name Status Exec Time Memory
01-01.txt AC 577 ms 8960 KB
01-02.txt AC 575 ms 8960 KB
01-03.txt AC 571 ms 8960 KB
01-04.txt AC 570 ms 8960 KB
01-05.txt AC 571 ms 8960 KB
01-06.txt AC 571 ms 8960 KB
01-07.txt AC 571 ms 8960 KB
01-08.txt AC 571 ms 8960 KB
01-09.txt AC 571 ms 8960 KB
01-10.txt WA 573 ms 8960 KB
01-11.txt AC 573 ms 8960 KB
01-12.txt AC 41 ms 8960 KB
01-13.txt AC 41 ms 8960 KB
01-14.txt AC 572 ms 8960 KB
01-15.txt AC 571 ms 8960 KB
01-16.txt AC 570 ms 8960 KB
01-17.txt AC 571 ms 8960 KB
01-18.txt AC 571 ms 8960 KB
01-19.txt AC 572 ms 8960 KB
01-20.txt AC 572 ms 8960 KB
01-21.txt AC 41 ms 8960 KB
01-22.txt AC 572 ms 8960 KB
01-23.txt AC 573 ms 8960 KB
01-24.txt AC 572 ms 8960 KB
01-25.txt AC 572 ms 8960 KB
01-26.txt AC 574 ms 8960 KB
02-01.txt RE 121 ms 8960 KB
02-02.txt WA 2 ms 256 KB
02-03.txt WA 2 ms 256 KB
02-04.txt WA 2 ms 256 KB
02-05.txt WA 2 ms 256 KB
02-06.txt WA 2 ms 256 KB
02-07.txt WA 2 ms 256 KB
02-08.txt WA 2 ms 256 KB
02-09.txt WA 2 ms 256 KB
02-10.txt WA 2 ms 256 KB
02-11.txt WA 2 ms 256 KB
02-12.txt WA 2 ms 256 KB
02-13.txt WA 3 ms 256 KB
02-14.txt WA 2 ms 256 KB
02-15.txt WA 2 ms 256 KB
02-16.txt WA 2 ms 256 KB
02-17.txt WA 2 ms 256 KB
02-18.txt WA 2 ms 256 KB
02-19.txt WA 2 ms 256 KB
02-20.txt WA 2 ms 256 KB
02-21.txt WA 2 ms 256 KB
02-22.txt WA 2 ms 256 KB
02-23.txt WA 2 ms 256 KB
02-24.txt WA 2 ms 256 KB
02-25.txt WA 2 ms 256 KB
02-26.txt WA 2 ms 256 KB
02-27.txt WA 2 ms 256 KB
02-28.txt WA 2 ms 256 KB
02-29.txt WA 2 ms 256 KB
02-30.txt WA 2 ms 256 KB
02-31.txt WA 2 ms 256 KB
02-32.txt WA 2 ms 256 KB
02-33.txt WA 2 ms 256 KB
02-34.txt WA 2 ms 256 KB
02-35.txt WA 2 ms 256 KB
02-36.txt WA 2 ms 256 KB
02-37.txt WA 2 ms 256 KB
02-38.txt WA 2 ms 256 KB
02-39.txt WA 2 ms 256 KB
02-40.txt WA 2 ms 256 KB
sample-01.txt AC 571 ms 8960 KB
sample-02.txt WA 2 ms 256 KB
sample-03.txt AC 570 ms 8960 KB