Submission #1308229

#	Time	Username	Problem	Language	Result	Execution time	Memory
1308229		luvqrose	Self Study (JOI22_ho_t2)	C++20	10 / 100	90 ms	5108 KiB

Main

#include <bits/stdc++.h>

using namespace std;

#define ll long long 

const ll nx=3e5+5;

ll n, m, a[nx], b[nx], need, extra, l=1, r=4e18, x, c, cl, y, rm;

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>n>>m;
    for (int i=1; i<=n; i++)
    {
        cin>>a[i];
    }
    for (int i=1; i<=n; i++)
    {
        cin>>b[i];
    }
    while (l<r)
    {
        x=(l+r+1)/2;
        for (int i=1; i<=n; i++)
        {
            c=max(a[i], b[i]);
            if (x/c*c==x) cl=x/c;
            else cl=x/c+1;
            if (cl>m)
            {
                rm=x-m*c;
                if (rm/b[i]*b[i]==rm*b[i]) rm=rm/b[i];
                else rm=rm/b[i]+1;
                need=need+rm;
            }
            else extra=extra+m-cl;
            if (need>m*n)
            {
                break;
            }
        }
        if (extra>=need)
        {
            l=x;
        }
        else r=x-1;
        need=0;
        extra=0;
    }
    cout<<r;

}

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