Submission #527826

#	Time	Username	Problem	Language	Result	Execution time	Memory
527826		Jasiekstrz	Self Study (JOI22_ho_t2)	C++17	100 / 100	245 ms	7328 KiB

Main

#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
const int N=3e5;
int a[N+10];
int b[N+10];
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	int n,m;
	cin>>n>>m;
	for(int i=1;i<=n;i++)
		cin>>a[i];
	for(int i=1;i<=n;i++)
		cin>>b[i];
	long long bg=1,en=1e18L+7;
	while(bg<en)
	{
		long long mid=(bg+en+1)/2;
		long long cnt=0;
		for(int i=1;i<=n;i++)
		{
			long long x=mid;
			if(a[i]>b[i])
			{
				long long k=(x+a[i]-1)/a[i];
				k=min(k,(long long)m);
				x-=k*a[i];
				cnt+=k;
			}
			if(x>0)
				cnt+=(x+b[i]-1)/b[i];
			if(cnt>(long long)n*m)
				break;
		}
		if(cnt<=(long long)n*m)
			bg=mid;
		else
			en=mid-1;
	}
	cout<<bg<<"\n";
	return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 25 / 25
• Subtask 3: 27 / 27
• Subtask 4: 29 / 29
• Subtask 5: 9 / 9