Submission #766458

#	Time	Username	Problem	Language	Result	Execution time	Memory
766458		HoriaHaivas	Self Study (JOI22_ho_t2)	C++14	100 / 100	203 ms	5004 KiB

Main

/*
    "TLE is like the wind, always by my side"
    - Yasuo - 2022 -
*/
#include <bits/stdc++.h>
#define debug(x) cerr << #x << " " << x << "\n"
#define debugs(x) cerr << #x << " " << x << " "
#pragma GCC optimize("Ofast")
#define int long long

using namespace std;

int n,m,i,j,r,pas;
int a[300005];
int b[300005];

int courseneed(int val, int course, int study)
{
    int ans;
    ans=0;
    if (course*m<val)
    {
        ans+=m;
        val-=course*m;
        if (val%study==0)
            ans+=val/study;
        else
            ans+=val/study+1;
    }
    else
    {
        if (val%course==0)
            ans+=val/course;
        else
            ans+=val/course+1;
    }
    return ans;
}

bool possible(int minimum)
{
    int sum;
    sum=0;
    for (i=1;i<=n;i++)
    {
         sum+=courseneed(minimum,a[i],b[i]);
         if (sum>n*m)
             return 0;
    }
    return 1;
}

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin >> n >> m;
    for (i=1;i<=n;i++)
    {
         cin >> a[i];
    }
    for (i=1;i<=n;i++)
    {
         cin >> b[i];
    }
    for (i=1;i<=n;i++)
    {
         a[i]=max(a[i],b[i]);
    }
    r=0;
    pas=(1LL<<60);
    while (pas)
    {
         if (possible(r+pas))
             r+=pas;
         pas=pas/2;
    }
    cout << r;
}

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