Submission #921153

#	Time	Username	Problem	Language	Result	Execution time	Memory
921153		AnasAAF	Self Study (JOI22_ho_t2)	C++14	0 / 100	153 ms	5148 KiB

Main

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define endl '\n'
#define ld long double

int main(){
    ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    ll n, m;cin>>n>>m;
    vector<ll>a(n), b(n);
    for(int i=0;i<n;i++)cin>>a[i];
    for(int i=0;i<n;i++)cin>>b[i];

    ll l(0), r = 2e18;
    while(l<r){
        ll mid = (l+r)/2;
        //cout<<mid<<" "<<l<<" "<<r<<endl;
        ll ext(0);
        for(int i=0;i<n;i++){
             ext += max((ll)(m - ceil((ld)mid/max(a[i], b[i]))), 0ll);
        }
        for(int i=0;i<n;i++){
            if(m*max(a[i], b[i])>=mid)continue;
            ll sm = ceil((ld)(mid - m*max(a[i], b[i]))/b[i]);
            ext-=sm;
        }

        if(ext<0){
            r=mid;
        }
        else l = mid+1;
    }
    cout<<l-1<<endl;

    return 0;
}

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