Submission #7474964


Source Code Expand

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

typedef long long ll;
ll N,A;

ll mul(ll a,ll b){
	if(a>=((ll)1e18-1)/b+1)return (ll)1e18;
	return min((ll)1e18,a*b);
}

ll power(ll a,ll x){
	ll ans=1;
	for(;x;x>>=1,a=mul(a,a))if(x&1)ans=mul(ans,a);
	return ans;
}

int main(){
	cin>>N>>A;
	ll ans=N;
	for(int k=1;k<=40;++k)
		for(int i=0;i<=k;++i){
			ll l=1,r=N;
			while(l<r){
				ll mid=l+r>>1;
				if(mul(power(mid,i),power(mid+1,k-i))>=N)r=mid;
				else l=mid+1;
			}
			ans=min(ans,A*(k-1)+l*k+k-i);
		}
	cout<<ans;
}

Submission Info

Submission Time
Task E - Cookies
User rushcheyo
Language C++14 (GCC 5.4.1)
Score 1000
Code Size 554 Byte
Status AC
Exec Time 5 ms
Memory 384 KB

Judge Result

Set Name sample dataset1 dataset2
Score / Max Score 0 / 0 500 / 500 500 / 500
Status
AC × 3
AC × 27
AC × 72
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 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 4 ms 256 KB
01-11.txt AC 4 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 2 ms 256 KB
01-19.txt AC 2 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 5 ms 256 KB
02-03.txt AC 5 ms 256 KB
02-04.txt AC 5 ms 256 KB
02-05.txt AC 5 ms 256 KB
02-06.txt AC 5 ms 256 KB
02-07.txt AC 5 ms 256 KB
02-08.txt AC 5 ms 256 KB
02-09.txt AC 5 ms 256 KB
02-10.txt AC 5 ms 256 KB
02-11.txt AC 5 ms 256 KB
02-12.txt AC 5 ms 256 KB
02-13.txt AC 5 ms 256 KB
02-14.txt AC 5 ms 256 KB
02-15.txt AC 5 ms 256 KB
02-16.txt AC 5 ms 256 KB
02-17.txt AC 5 ms 256 KB
02-18.txt AC 5 ms 256 KB
02-19.txt AC 5 ms 256 KB
02-20.txt AC 5 ms 256 KB
02-21.txt AC 5 ms 256 KB
02-22.txt AC 5 ms 256 KB
02-23.txt AC 5 ms 256 KB
02-24.txt AC 5 ms 256 KB
02-25.txt AC 4 ms 256 KB
02-26.txt AC 5 ms 256 KB
02-27.txt AC 5 ms 256 KB
02-28.txt AC 5 ms 256 KB
02-29.txt AC 5 ms 256 KB
02-30.txt AC 5 ms 256 KB
02-31.txt AC 5 ms 256 KB
02-32.txt AC 5 ms 256 KB
02-33.txt AC 5 ms 256 KB
02-34.txt AC 5 ms 256 KB
02-35.txt AC 5 ms 256 KB
02-36.txt AC 5 ms 256 KB
02-37.txt AC 5 ms 256 KB
02-38.txt AC 5 ms 256 KB
02-39.txt AC 5 ms 384 KB
02-40.txt AC 5 ms 256 KB
sample-01.txt AC 1 ms 256 KB
sample-02.txt AC 5 ms 256 KB
sample-03.txt AC 3 ms 256 KB