Submission #1832953


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#include <iostream>
#include <vector>
#include <deque>
#include <math.h>
#include <set>
#include <iomanip>
#include <time.h>
#include <list>
#include <stdio.h>
#include <queue>
#include <map>
#include <algorithm>
#include <assert.h>
#include <memory.h>

#define mk make_pair
#define sc second
#define fr first
#define pb emplace_back
#define sz(s) ( (int)s.size() )
#define all(s) s.begin(), s.end()
#define int long long

using namespace std;

int n, a, ans = 1e18;

inline bool check(int m, int i)
{
    int u = 1;
    for (int j = 1; j <= i; j++)
    {
        u *= m;
        if (u >= n)
            return true;
    }
    return false;
}

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

    ans = n;

    for (int i = 1; i <= 40; i++)
    {
        int l = 0, r = 1e6 + 1;

        while (r - l > 1)
        {
            int md = (l + r) >> 1;
            if ( check(md, i + 1) )
                r = md;
            else
                l = md;
        }
        int cnt = 0;
        int u = 1;

        for (int j = 1; j <= i + 1; j++)
        {
            int pw = 1;

            for (int l = j + 1; l <= i + 1; l++)
                pw *= r;

            if (pw * u * (r - 1) >= n)
                u *= (r - 1),
                cnt += (r - 1);
            else
                u *= r,
                cnt += r;
        }
        ans = min( ans, i * a + cnt );
    }
    cout << ans << endl;
}

Submission Info

Submission Time
Task E - Cookies
User vjudge3
Language C++14 (GCC 5.4.1)
Score 1000
Code Size 1385 Byte
Status
Exec Time 1 ms
Memory 256 KB

Judge Result

Set Name Score / Max Score Test Cases
sample 0 / 0 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
Case Name Status Exec Time Memory
01-01.txt 1 ms 256 KB
01-02.txt 1 ms 256 KB
01-03.txt 1 ms 256 KB
01-04.txt 1 ms 256 KB
01-05.txt 1 ms 256 KB
01-06.txt 1 ms 256 KB
01-07.txt 1 ms 256 KB
01-08.txt 1 ms 256 KB
01-09.txt 1 ms 256 KB
01-10.txt 1 ms 256 KB
01-11.txt 1 ms 256 KB
01-12.txt 1 ms 256 KB
01-13.txt 1 ms 256 KB
01-14.txt 1 ms 256 KB
01-15.txt 1 ms 256 KB
01-16.txt 1 ms 256 KB
01-17.txt 1 ms 256 KB
01-18.txt 1 ms 256 KB
01-19.txt 1 ms 256 KB
01-20.txt 1 ms 256 KB
01-21.txt 1 ms 256 KB
01-22.txt 1 ms 256 KB
01-23.txt 1 ms 256 KB
01-24.txt 1 ms 256 KB
01-25.txt 1 ms 256 KB
01-26.txt 1 ms 256 KB
02-01.txt 1 ms 256 KB
02-02.txt 1 ms 256 KB
02-03.txt 1 ms 256 KB
02-04.txt 1 ms 256 KB
02-05.txt 1 ms 256 KB
02-06.txt 1 ms 256 KB
02-07.txt 1 ms 256 KB
02-08.txt 1 ms 256 KB
02-09.txt 1 ms 256 KB
02-10.txt 1 ms 256 KB
02-11.txt 1 ms 256 KB
02-12.txt 1 ms 256 KB
02-13.txt 1 ms 256 KB
02-14.txt 1 ms 256 KB
02-15.txt 1 ms 256 KB
02-16.txt 1 ms 256 KB
02-17.txt 1 ms 256 KB
02-18.txt 1 ms 256 KB
02-19.txt 1 ms 256 KB
02-20.txt 1 ms 256 KB
02-21.txt 1 ms 256 KB
02-22.txt 1 ms 256 KB
02-23.txt 1 ms 256 KB
02-24.txt 1 ms 256 KB
02-25.txt 1 ms 256 KB
02-26.txt 1 ms 256 KB
02-27.txt 1 ms 256 KB
02-28.txt 1 ms 256 KB
02-29.txt 1 ms 256 KB
02-30.txt 1 ms 256 KB
02-31.txt 1 ms 256 KB
02-32.txt 1 ms 256 KB
02-33.txt 1 ms 256 KB
02-34.txt 1 ms 256 KB
02-35.txt 1 ms 256 KB
02-36.txt 1 ms 256 KB
02-37.txt 1 ms 256 KB
02-38.txt 1 ms 256 KB
02-39.txt 1 ms 256 KB
02-40.txt 1 ms 256 KB
sample-01.txt 1 ms 256 KB
sample-02.txt 1 ms 256 KB
sample-03.txt 1 ms 256 KB