Submission #916338

#	Time	Username	Problem	Language	Result	Execution time	Memory
916338		ace5	Self Study (JOI22_ho_t2)	C++17	100 / 100	363 ms	11572 KiB

Main

#include <bits/stdc++.h>

using namespace std;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n,m;
    cin >> n >> m;
    int64_t a[n],b[n];
    for(int i = 0;i < n;++i)
    {
        cin >> a[i];
    }
    for(int i = 0;i < n;++i)
    {
        cin >> b[i];
        if(a[i] < b[i])
            a[i] = b[i];
    }
    int64_t l = 0,r = 1e18;
    while(l < r)
    {
        int64_t mid = (l+r+1)/2;
        __int128 sv = 0;
        __int128 bv = 0;
        for(int j = 0;j < n;++j)
        {
            sv += max(int64_t(0),m-((mid+a[j]-1)/a[j]));
            bv += max(int64_t(0),(mid-m*a[j]+b[j]-1)/b[j]);
        }
        sv < bv ? r = mid-1 : l = mid;
    }
    cout << l;
    return 0;
}

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