Submission #640716

#	Time	Username	Problem	Language	Result	Execution time	Memory
640716		ck_platypus	Self Study (JOI22_ho_t2)	C++14	0 / 100	314 ms	5012 KiB

Main

#include <iostream>
#include <string>
#include <cmath>
#include <vector>
#include <algorithm>
#include <utility>
#include <bitset>
#include <climits>
#include <set>
#include <map>
#include <iomanip>
#include <queue>
#include <cstring>
#include <fstream>
using namespace std;
#define ll long long
#define pb push_back
#define mp make_pair
#define pll pair<ll, ll>
#define pii pair<int, int>
#define f first
#define s second
#define inf 1000000000000000

int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	ll n, m;
    cin >> n >> m;
    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=1e18+1, mid;
    while(r-l!=1){
        //cout << l << " " << r << endl;
        mid=(l+r)/2;
        ll cnt=n*m;
        vector<pll> todo;
        for(int i=0;i<n;i++){
            if(a[i]>=b[i]){
                if(a[i]*m>=mid) cnt-=(mid+a[i]-1)/a[i];
                else cnt-=m+(mid-a[i]*m+b[i]-1)/b[i];
            }else cnt-=(mid+b[i]-1)/b[i];
        }
        if(cnt>=0) l=mid;
        else r=mid;
    }
    cout << l << endl;
    return 0;
}

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