Submission #937797

#	Time	Username	Problem	Language	Result	Execution time	Memory
937797		Andrey	Self Study (JOI22_ho_t2)	C++14	100 / 100	217 ms	18192 KiB

Main

#include <bits/stdc++.h>
using namespace std;

vector<long long> haha(0);
vector<long long> bruh(0);
long long n,m;

bool check(long long a) {
    long long br = 0;
    for(long long i = 0; i < n; i++) {
        if(haha[i] <= bruh[i]) {
            br+=(a-1)/bruh[i]+1;
        }
        else {
            if(a > haha[i]*m) {
                br+=m;
                br+=(a-1-haha[i]*m)/bruh[i]+1;
            }
            else {
                br+=(a-1)/haha[i]+1;
            }
        }
        if(br > n*m) {
            return false;
        }
    }
    if(br > n*m) {
        return false;
    }
    else {
        return true;
    }
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin >> n >> m;
    long long a;
    for(long long i = 0; i < n; i++) {
        cin >> a;
        haha.push_back(a);
    }
    for(long long i = 0; i < n; i++) {
        cin >> a;
        bruh.push_back(a);
    }
    long long l = 0,r = 1e18;
    while(l < r) {
        long long mid = (l+r+1)/2;
        if(check(mid)) {
            l = mid;
        }
        else {
            r = mid-1;
        }
    }
    cout << l;
    return 0;
}

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