Submission #1179442

#	Time	Username	Problem	Language	Result	Execution time	Memory
1179442		12345678	Self Study (JOI22_ho_t2)	C++17	0 / 100	83 ms	4936 KiB

Main

#include<bits/stdc++.h>
using namespace std;
#define int long long
signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n,m;
    cin>>n>>m;
    int a[n],b[n];
    for(int i=0;i<n;i++)
    cin>>a[i];
    for(int i=0;i<n;i++)
    cin>>b[i];
    int l=0,r=1e18*3;
    while(l<r)
    {
        int mid=(l+r+1)/2;
        int cnt=0;
        for(int i=0;i<n;i++)
        {
            int t=mid;
            if(b[i]>=a[i])
            {
                cnt+=((t%b[i])==0)?t/b[i]:(t/b[i]+1);
                //cnt+=ceil((double)t/b[i]);
                continue;
            }
            if(a[i]*m>=t)
            {
                cnt+=((t%a[i])==0)?t/a[i]:(t/a[i]+1);
                //cnt+=ceil((double)t/a[i]);
                continue;
            }
            cnt+=m;
            t-=a[i]*m;
            cnt+=((t%b[i])==0)?t/b[i]:(t/b[i]+1);
            if (cnt>n*m) break; 
        }
        //cout<<l<<" "<<r<<" "<<mid<<endl;
        if(cnt<=n*m)
        l=mid;
        else
        r=mid-1;
    }
    cout<<l;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29
• Subtask 5: 0 / 9