Submission #1114623

#	Time	Username	Problem	Language	Result	Execution time	Memory
1114623		onlk97	Self Study (JOI22_ho_t2)	C++14	100 / 100	136 ms	11592 KiB

Main

#include <bits/stdc++.h>
#define int long long
#define x first
#define y second
#define pb push_back
using namespace std;
using pii=pair <int,int>;
using tii=pair <pii,int>;
void solve(){
    int n,m;
    cin>>n>>m;
    int a[n+1],b[n+1];
    for (int i=1; i<=n; i++) cin>>a[i];
    for (int i=1; i<=n; i++) cin>>b[i];
    int l=0,r=1e18;
    while (l<r){
        int mid=(l+r+1)/2;
        int att=0,need=0;
        for (int i=1; i<=n; i++){
            if (a[i]<=b[i]){
                need+=(mid+b[i]-1)/b[i];
            } else {
                int r=min(m,(mid+a[i]-1)/a[i]);
                att+=r;
                int nw=mid-a[i]*r;
                if (nw>0) need+=(nw+b[i]-1)/b[i];
            }
            if (att+need>n*m) break;
        }
        if (att+need<=n*m) l=mid;
        else r=mid-1;
    }
    cout<<l<<'\n';
}
signed main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
    int t=1;
    //cin>>t;
    while (t--) solve();
}

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