CODE FESTIVAL 2016 Final

Submission #1832952

Source codeソースコード

#include <bits/stdc++.h>
 
#define fr first
#define sc second
#define OK puts("OK");
#define pb push_back
#define mk make_pair
 
using namespace std;
 
typedef long long ll;
 
const ll inf = (ll)1e18 + 7;
const int N = (int)2e6 + 7;
 
ll n,a;
ll mn = inf;
 
ll bpow (ll x,ll o) {
        ll res = 1;
        for (int i = 1; i <= o; i ++) {
                res = res * 1ll * x;
        }
        return res;
}
bool check (ll x,int o) {
        ll res = 1;
        for (int i = 1; i <= o + 1; i ++) {
                res *= x;
                if (res >= n)
                        return true;
        }
        return false;
}
 main () {
        cin >> n >> a;
 
        mn = n;
 
        for (int i = 0; i <= 40; i ++) {
                ll l = 1,r = 1e6 + 1;
 
                while (r - l > 1) {
                        ll m = (r + l) >> 1;
 
                        if (check(m,i))
                                r = m;
                        else
                                l = m;
                }
                for (int j = 1; j <= i + 1; j ++) {
                        if (bpow(r,j) * 1ll * bpow(r - 1,(i + 1 - j)) >= n) {
                                mn = min(mn,i * 1ll * a + j * 1ll * r + (r - 1) * 1ll * (i + 1 - j));
                                break;
                        }
                }
        }
        cout << mn << endl;
}

Submission

Task問題 E - Cookies
User nameユーザ名 vjudge4
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 1363 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