Submission #1134901

#	Time	Username	Problem	Language	Result	Execution time	Memory
1134901		Unforgettablepl	Self Study (JOI22_ho_t2)	C++20	0 / 100	133 ms	4936 KiB

Main

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

#define int long long

#define ceilDiv(A,B) ((A)/(B) + min(1ll,A%B))

const int INF = 1e10;


int32_t main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n,m;
    cin >> n >> m;
    vector<int> A(n),B(n);
    for(int&i:A)cin>>i;
    for(int&i:B)cin>>i;
    auto test = [&](int x) {
        int pick = 0;
        for(int i=0;i<n;i++) {
            if(B[i]>=A[i])pick+=ceilDiv(x,B[i]);
            else if(x<=A[i]*m)pick+=ceilDiv(x,A[i]);
            else pick+=m+ceilDiv(x-A[i]*m,B[i]);
        }
        return pick<=n*m;
    };
    int ans = 0;
    for(int jump=(1ll<<59);jump;jump/=2) {
        if(test(ans+jump))ans+=jump;
    }
    cout << ans << '\n';
}

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