CODE FESTIVAL 2016 Final

Submission #1833239

Source codeソースコード

# include <bits/stdc++.h>

# define pb push_back
# define fr first
# define sc second
# define mk make_pair
# define int long long

using namespace std;

const int inf = 1e9 + 7;
const int N = 1e7 + 5;

typedef long long ll;

int n, a, ans;

bool check(int x, int k)
{
      int mul = 1;
      for(int i = 1; i <= k; i ++)
      {
            mul *= x;
            if(mul >= n) return true;
      }
      return false;
}

main()
{
      cin >> n >> a;

      ans = n;

      for(int k = 2; k <= 41; k ++)
      {
            int res = a * (k - 1), l = 0, r = 1e6 + 1, mid;

            while(r - l > 1)
            {
                  int md = (l + r) >> 1;
                  if(check(md, k))
                        r = md;
                  else
                        l = md;
            }

            if(check(l, k)) r = l;

            for(int i = 0; i < k; i ++)
            {
                  int mul = 1, fl = 0;
                  for(int j = 1; j <= i; j ++)
                  {
                        mul *= (r - 1);
                        if(mul >= n) fl = 1;
                  }
                  for(int j = i + 1; j <= k; j ++)
                  {
                        mul *= r;
                        if(mul >= n) fl = 1;
                  }
                  if(fl) mid = i;
            }

            for(int i = 1; i <= mid; i ++)
                  res += (r - 1);
            for(int i = mid + 1; i <= k; i ++)
                  res += r;
            ans = min(ans, res);
      }

      cout << ans << endl;
}

Submission

Task問題 E - Cookies
User nameユーザ名 Mirbek Bakirov
Created time投稿日時
Language言語 C++14 (GCC 5.4.1)
Status状態 AC
Score得点 1000
Source lengthソースコード長 1612 Byte
File nameファイル名
Exec time実行時間 1 ms
Memory usageメモリ使用量 256 KB

Test case

Set

Set name Score得点 / Max score Cases
sample - sample-01.txt,sample-02.txt,sample-03.txt
dataset1 500 / 500 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 500 / 500 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

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
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 1 ms 256 KB
01-13.txt AC 1 ms 256 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 1 ms 256 KB
02-20.txt AC 1 ms 256 KB
02-21.txt AC 1 ms 256 KB
02-22.txt AC 1 ms 256 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 1 ms 256 KB
02-38.txt AC 1 ms 256 KB
02-39.txt AC 1 ms 256 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