Submission #1680720


Source Code Expand

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

const ll p = 1e9+7;

const int M = 3e6+5;
ll n, a, m, dp[M];
vector<ll> r;

int main() {
	cin >> n >> a;
	if (n == 1) {
		cout << "1\n";
		return 0;
	}

	if (n > 1000000)
		return 0;

	for (ll i = 1; i*i <= n; ++i) {
		if (i*i == n) {
			r.push_back(i);	
		} else {
			r.push_back(i);
			if (i != (n+i-1)/i)
				r.push_back((n+i-1)/i);
		}
	}

	sort(r.begin(), r.end());
	m = r.size();

	/* for (int i = 0; i < m; ++i)
		cout << r[i] << ' ';
	cout << endl; */

	dp[0] = 0;
	for (int i = 1; i < m; ++i) {
		dp[i] = r[i] + a;
		for (int j = 0; j < i; ++j) {
			int p = (r[i] + r[j] - 1)/r[j];
			while (p > 1 && (r[i]+p-2)/(p-1) <= r[j]) {
				p--;
			}

			dp[i] = min(dp[i], p + dp[j] + a);
		}
	}

	cout << dp[m-1] - a << endl;
}

Submission Info

Submission Time
Task E - Cookies
User desert97
Language C++14 (GCC 5.4.1)
Score 500
Code Size 850 Byte
Status WA
Exec Time 48 ms
Memory 256 KB

Judge Result

Set Name sample dataset1 dataset2
Score / Max Score 0 / 0 500 / 500 0 / 500
Status
AC × 2
WA × 1
AC × 27
AC × 31
WA × 41
Set Name Test Cases
sample sample-01.txt, sample-02.txt, sample-03.txt
dataset1 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 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 AC 47 ms 256 KB
01-02.txt AC 47 ms 256 KB
01-03.txt AC 47 ms 256 KB
01-04.txt AC 47 ms 256 KB
01-05.txt AC 47 ms 256 KB
01-06.txt AC 47 ms 256 KB
01-07.txt AC 47 ms 256 KB
01-08.txt AC 47 ms 256 KB
01-09.txt AC 48 ms 256 KB
01-10.txt AC 47 ms 256 KB
01-11.txt AC 47 ms 256 KB
01-12.txt AC 47 ms 256 KB
01-13.txt AC 47 ms 256 KB
01-14.txt AC 4 ms 256 KB
01-15.txt AC 26 ms 256 KB
01-16.txt AC 26 ms 256 KB
01-17.txt AC 47 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 WA 1 ms 256 KB
02-03.txt WA 1 ms 256 KB
02-04.txt WA 1 ms 256 KB
02-05.txt WA 1 ms 256 KB
02-06.txt WA 1 ms 256 KB
02-07.txt WA 1 ms 256 KB
02-08.txt WA 1 ms 256 KB
02-09.txt WA 1 ms 256 KB
02-10.txt WA 1 ms 256 KB
02-11.txt WA 1 ms 256 KB
02-12.txt WA 1 ms 256 KB
02-13.txt WA 1 ms 256 KB
02-14.txt WA 1 ms 256 KB
02-15.txt WA 1 ms 256 KB
02-16.txt WA 1 ms 256 KB
02-17.txt WA 1 ms 256 KB
02-18.txt WA 1 ms 256 KB
02-19.txt WA 1 ms 256 KB
02-20.txt WA 1 ms 256 KB
02-21.txt WA 1 ms 256 KB
02-22.txt WA 1 ms 256 KB
02-23.txt WA 1 ms 256 KB
02-24.txt WA 1 ms 256 KB
02-25.txt WA 1 ms 256 KB
02-26.txt WA 1 ms 256 KB
02-27.txt WA 1 ms 256 KB
02-28.txt WA 1 ms 256 KB
02-29.txt WA 1 ms 256 KB
02-30.txt WA 1 ms 256 KB
02-31.txt WA 1 ms 256 KB
02-32.txt WA 1 ms 256 KB
02-33.txt WA 1 ms 256 KB
02-34.txt WA 1 ms 256 KB
02-35.txt WA 1 ms 256 KB
02-36.txt WA 1 ms 256 KB
02-37.txt WA 1 ms 256 KB
02-38.txt WA 1 ms 256 KB
02-39.txt WA 1 ms 256 KB
02-40.txt WA 1 ms 256 KB
sample-01.txt AC 1 ms 256 KB
sample-02.txt WA 1 ms 256 KB
sample-03.txt AC 7 ms 256 KB