Submission #1030866

#	Time	Username	Problem	Language	Result	Execution time	Memory
1030866		VMaksimoski008	Self Study (JOI22_ho_t2)	C++17	64 / 100	226 ms	11512 KiB

Main

#include <bits/stdc++.h>

#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
//#define int long long

using namespace std;

using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

const int mod = 1e9 + 7;
const int LOG = 20;
const int maxn = 1e5 + 5;

signed main() {
    ll n, m;
    cin >> n >> m;

    vector<ll> 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];

    if(m == 1) {
        ll ans = 1e18;
        for(int i=1; i<=n; i++) ans = min(ans, max(a[i], b[i]));
        cout << ans << '\n';
        return 0;
    }

    __int128_t l=1, r=1e18, ans=0;
    while(l <= r) {
        __int128_t mid = (l + r) / 2;
        __int128_t total = 0;

        for(__int128_t i=1; i<=n; i++) total += (mid + a[i] - 1) / a[i];

        if(total <= n * m) ans = mid, l = mid + 1;
        else r = mid - 1;
    }
    cout << (ll)ans << '\n';
    return 0;
}

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