CODE FESTIVAL 2016 Final

Submission #992635

Source codeソースコード

#include <cstdio>
#include <algorithm>
#include <vector>
#include <stack>
#include <queue>
#include <set>
#include <map>
#include <cstring>
#include <string>
#include <cmath>
#include <cstdlib>
#include <iostream>

using namespace std;

#define MOD @
#define ADD(X,Y) ((X) = ((X) + (Y)) % MOD)
typedef long long i64; typedef vector<int> ivec; typedef vector<string> svec;

i64 N, A;

const i64 INFT = 100000000000000LL;

i64 mult(i64 a, i64 b)
{
	if (a == 0) return 0;
	if (INFT / a < b) return INFT;
	return a * b;
}

i64 getmax(i64 T, int S)
{
	i64 ans = 1;
	for (int i = 0; i < S; ++i) {
		ans = mult(ans, T / S + (i < T % S ? 1 : 0));
	}
//	printf("%lld %d %lld\n", T, S, ans);
	return ans;
}

int main()
{
	scanf("%lld%lld", &N, &A);

	i64 ret = N;
	for (int i = 1; i <= 40; ++i) {
		i64 left = i, right = N;
		while (left < right) {
			i64 mid = (left + right) / 2;
			if (getmax(mid, i) >= N) {
				right = mid;
			} else
			{
				left = mid + 1;
			}
		}
		ret = min(ret, A * (i - 1) + left);
	}

	printf("%lld\n", ret);
	return 0;
}

Submission

Task問題 E - Cookies
User nameユーザ名 semiexp feat. GUMI
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 1104 Byte
File nameファイル名
Exec time実行時間 3 ms
Memory usageメモリ使用量 256 KB

Compiler messageコンパイルメッセージ

./Main.cpp: In function ‘int main()’:
./Main.cpp:43:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld%lld", &N, &A);
^

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

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 3 ms 256 KB
01-02.txt AC 3 ms 256 KB
01-03.txt AC 3 ms 256 KB
01-04.txt AC 3 ms 256 KB
01-05.txt AC 3 ms 256 KB
01-06.txt AC 3 ms 256 KB
01-07.txt AC 3 ms 256 KB
01-08.txt AC 3 ms 256 KB
01-09.txt AC 3 ms 256 KB
01-10.txt AC 3 ms 256 KB
01-11.txt AC 3 ms 256 KB
01-12.txt AC 3 ms 256 KB
01-13.txt AC 3 ms 256 KB
01-14.txt AC 3 ms 256 KB
01-15.txt AC 3 ms 256 KB
01-16.txt AC 3 ms 256 KB
01-17.txt AC 3 ms 256 KB
01-18.txt AC 3 ms 256 KB
01-19.txt AC 3 ms 256 KB
01-20.txt AC 3 ms 256 KB
01-21.txt AC 3 ms 256 KB
01-22.txt AC 3 ms 256 KB
01-23.txt AC 3 ms 256 KB
01-24.txt AC 3 ms 256 KB
01-25.txt AC 3 ms 256 KB
01-26.txt AC 3 ms 256 KB
02-01.txt AC 3 ms 256 KB
02-02.txt AC 3 ms 256 KB
02-03.txt AC 3 ms 256 KB
02-04.txt AC 3 ms 256 KB
02-05.txt AC 3 ms 256 KB
02-06.txt AC 3 ms 256 KB
02-07.txt AC 3 ms 256 KB
02-08.txt AC 3 ms 256 KB
02-09.txt AC 3 ms 256 KB
02-10.txt AC 3 ms 256 KB
02-11.txt AC 3 ms 256 KB
02-12.txt AC 3 ms 256 KB
02-13.txt AC 3 ms 256 KB
02-14.txt AC 3 ms 256 KB
02-15.txt AC 3 ms 256 KB
02-16.txt AC 3 ms 256 KB
02-17.txt AC 3 ms 256 KB
02-18.txt AC 3 ms 256 KB
02-19.txt AC 3 ms 256 KB
02-20.txt AC 3 ms 256 KB
02-21.txt AC 3 ms 256 KB
02-22.txt AC 3 ms 256 KB
02-23.txt AC 3 ms 256 KB
02-24.txt AC 3 ms 256 KB
02-25.txt AC 3 ms 256 KB
02-26.txt AC 3 ms 256 KB
02-27.txt AC 3 ms 256 KB
02-28.txt AC 3 ms 256 KB
02-29.txt AC 3 ms 256 KB
02-30.txt AC 3 ms 256 KB
02-31.txt AC 3 ms 256 KB
02-32.txt AC 3 ms 256 KB
02-33.txt AC 3 ms 256 KB
02-34.txt AC 3 ms 256 KB
02-35.txt AC 3 ms 256 KB
02-36.txt AC 3 ms 256 KB
02-37.txt AC 3 ms 256 KB
02-38.txt AC 3 ms 256 KB
02-39.txt AC 3 ms 256 KB
02-40.txt AC 3 ms 256 KB
sample-01.txt AC 3 ms 256 KB
sample-02.txt AC 3 ms 256 KB
sample-03.txt AC 3 ms 256 KB