Submission #1299947

#	Time	Username	Problem	Language	Result	Execution time	Memory
1299947		Zone_zonee	Self Study (JOI22_ho_t2)	C++20	0 / 100	136 ms	5128 KiB

Main

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const int N = 3e5+10;

ll a[N], b[N];
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n, m;
    cin >> n >> m;
    for(int i = 1; i <= n; ++i) cin >> a[i];
    for(int i = 1; i <= n; ++i) cin >> b[i];
    ll l = 0, r = 1e18, ans;
    while(l < r){
        ll mid = (l+r)>>1;
        ll needed = 0, extra = 0;
        for(int i = 1; i <= n; ++i){
            if(mid <= max(a[i], b[i])*m){
                extra += m-ceil(1.0*mid/max(a[i], b[i]));
            }else{
                needed += ceil((1.0*mid-m*max(a[i], b[i]))/b[i]);
            }
        }
        if(extra >= needed) l = mid+1, ans = mid;
        else r = mid;
    }
    cout << ans << '\n';
}

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