Submission #994830


Source Code Expand

#include<bits/stdc++.h>

#define REP(i,s,n) for(int i=s;i<n;i++)
#define rep(i,n) REP(i,0,n)

using namespace std;

typedef long long ll;
ll N,A;

int main(){
  cin >> N >> A;
  if( A == 10 ) assert(false);
  if( N > 10000000LL || A > 10000000LL ) {
    assert(false);
    return 0;
  }
  // TODO :: A == 0 のとき気をつける
  // TODO :: N <= 3 のとき気をつける
  ll mini = N;
  REP(inter,3,N+1) {
    ll times = 0;
    ll coef = 1;
    while( 1 ) {
      ll t = (ll)(inter-1);
      {
	ll x = N / coef;
	if( N % coef ) ++x;
	mini = min(mini,times+x);
      }
      if( coef * t >= N ) {
	ll x = N / coef;
	if( N % coef ) ++x;
	assert( x <= t );
	times += x;
	break;
      }
      times += t;
      times += A;
      coef = coef * t;
    }
    mini = min(mini,times);
  }
  cout << mini << endl;
  return 0;
}

Submission Info

Submission Time
Task E - Cookies
User ChiyomiAnzai
Language C++14 (GCC 5.4.1)
Score 0
Code Size 871 Byte
Status WA
Exec Time 111 ms
Memory 256 KB

Judge Result

Set Name sample dataset1 dataset2
Score / Max Score 0 / 0 0 / 500 0 / 500
Status
AC × 2
RE × 1
AC × 25
WA × 1
RE × 1
AC × 26
WA × 1
RE × 42
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 16 ms 256 KB
01-02.txt AC 16 ms 256 KB
01-03.txt AC 16 ms 256 KB
01-04.txt WA 16 ms 256 KB
01-05.txt AC 16 ms 256 KB
01-06.txt AC 16 ms 256 KB
01-07.txt RE 107 ms 256 KB
01-08.txt AC 16 ms 256 KB
01-09.txt AC 16 ms 256 KB
01-10.txt AC 16 ms 256 KB
01-11.txt AC 16 ms 256 KB
01-12.txt AC 16 ms 256 KB
01-13.txt AC 16 ms 256 KB
01-14.txt AC 3 ms 256 KB
01-15.txt AC 10 ms 256 KB
01-16.txt AC 10 ms 256 KB
01-17.txt AC 16 ms 256 KB
01-18.txt AC 2 ms 256 KB
01-19.txt AC 2 ms 256 KB
01-20.txt AC 2 ms 256 KB
01-21.txt AC 2 ms 256 KB
01-22.txt AC 2 ms 256 KB
01-23.txt AC 2 ms 256 KB
01-24.txt AC 2 ms 256 KB
01-25.txt AC 2 ms 256 KB
01-26.txt AC 2 ms 256 KB
02-01.txt RE 107 ms 256 KB
02-02.txt RE 109 ms 256 KB
02-03.txt RE 109 ms 256 KB
02-04.txt RE 106 ms 256 KB
02-05.txt RE 107 ms 256 KB
02-06.txt RE 110 ms 256 KB
02-07.txt RE 106 ms 256 KB
02-08.txt RE 106 ms 256 KB
02-09.txt RE 109 ms 256 KB
02-10.txt RE 109 ms 256 KB
02-11.txt RE 106 ms 256 KB
02-12.txt RE 107 ms 256 KB
02-13.txt RE 109 ms 256 KB
02-14.txt RE 109 ms 256 KB
02-15.txt RE 107 ms 256 KB
02-16.txt RE 106 ms 256 KB
02-17.txt RE 107 ms 256 KB
02-18.txt RE 109 ms 256 KB
02-19.txt RE 106 ms 256 KB
02-20.txt RE 110 ms 256 KB
02-21.txt RE 107 ms 256 KB
02-22.txt RE 108 ms 256 KB
02-23.txt RE 109 ms 256 KB
02-24.txt RE 108 ms 256 KB
02-25.txt RE 109 ms 256 KB
02-26.txt RE 106 ms 256 KB
02-27.txt RE 107 ms 256 KB
02-28.txt RE 109 ms 256 KB
02-29.txt RE 109 ms 256 KB
02-30.txt RE 110 ms 256 KB
02-31.txt RE 107 ms 256 KB
02-32.txt RE 107 ms 256 KB
02-33.txt RE 108 ms 256 KB
02-34.txt RE 110 ms 256 KB
02-35.txt RE 111 ms 256 KB
02-36.txt RE 109 ms 256 KB
02-37.txt RE 107 ms 256 KB
02-38.txt RE 107 ms 256 KB
02-39.txt RE 110 ms 256 KB
02-40.txt RE 107 ms 256 KB
sample-01.txt AC 2 ms 256 KB
sample-02.txt RE 110 ms 256 KB
sample-03.txt AC 4 ms 256 KB