Submission #573014

#	Time	Username	Problem	Language	Result	Execution time	Memory
573014		groshi	Self Study (JOI22_ho_t2)	C++17	0 / 100	468 ms	11020 KiB

Main

#include<iostream>

using namespace std;
long long a[400000],b[400000];
long long n,m;
bool ok(long long ile)
{
    //cout<<"check "<<ile<<"\n";
    long long wolne=0;
    for(int i=1;i<=n;i++)
    {
        if(b[i]>a[i])
            a[i]=b[i];
        long long ile_kursow_ja=ile/a[i];
        if(ile%a[i]!=0)
            ile_kursow_ja++;
        if(ile_kursow_ja<=m)
            wolne+=(m-ile_kursow_ja);
        else{
            long long reszta=ile-m*a[i];
            long long dod=reszta/b[i];
            if(reszta%b[i]!=0)
                dod++;
            wolne-=dod;
        }
        //cout<<ile_kursow_ja<<" "<<wolne<<"\n";
    }

    if(wolne>=0)
        return 1;
    else return 0;
}
int main()
{
    cin.tie(0);
    cout.tie(0);
    ios_base::sync_with_stdio(0);
    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 pocz=0,kon=1e18+1,sre,ostd;
    while(pocz<kon)
    {
        sre=(pocz+kon)/2;
        //cout<<sre<<": "<<ok(sre)<<"\n";
        if(ok(sre))
        {
            ostd=sre;
            pocz=sre+1;
        }
        else kon=sre;
    }
    cout<<ostd;
    return 0;
}

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