CODE FESTIVAL 2016 Final

Submission #5395660

Source codeソースコード

#include <bits/stdc++.h>
#define fi first
#define se second
#define pii pair<int,int>
#define mp make_pair
#define pb push_back
#define space putchar(' ')
#define enter putchar('\n')
#define eps 1e-10
#define MAXN 1000005
//#define ivorysi
using namespace std;
typedef long long int64;
typedef unsigned int u32;
typedef double db;
template<class T>
void read(T &res) {
    res = 0;T f = 1;char c = getchar();
    while(c < '0' || c > '9') {
	if(c == '-') f = -1;
	c = getchar();
    }
    while(c >= '0' && c <= '9') {
	res = res * 10 +c - '0';
	c = getchar();
    }
    res *= f;
}
template<class T>
void out(T x) {
    if(x < 0) {x = -x;putchar('-');}
    if(x >= 10) {
	out(x / 10);
    }
    putchar('0' + x % 10);
}
int64 N,A;

void Solve() {
    read(N);read(A);
    int64 ans = N;
    for(int i = 2 ; i <= 40 ; ++i) {
	if((1LL << i) > N) break;
	int64 tmp = (i - 1) * A;
	int64 l = 1,r = N;
	while(l < r) {
	    int64 mid = (l + r + 1) >> 1;
	    int64 t = 1;
	    bool f = 1;
	    for(int j = 1 ; j <= i ; ++j) {
		if(mid > N / t) {f = 0;break;}
		t = t * mid;
	    }
	    if(f) l = mid;
	    else r = mid - 1;
	}
	int64 t = 1;
	for(int j = 1 ; j <= i ; ++j) {
	    t = t * l;
	}
	int64 cnt = l * i;
	while(t < N) {
	    t /= l;
	    if((l + 1) <= N / t) {t = t * (l + 1); ++cnt;}
	    else {++cnt;break;}
	}
	ans = min(ans,tmp + cnt);
    }
    out(ans);enter;
}
int main() {
#ifdef ivorysi
    freopen("f1.in","r",stdin);
#endif
    Solve();
    return 0;
}

Submission

Task問題 E - Cookies
User nameユーザ名 sigongzi
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 1545 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