Submission #1181130

#	Time	Username	Problem	Language	Result	Execution time	Memory
1181130		anteknne	Self Study (JOI22_ho_t2)	C++20	0 / 100	194 ms	7552 KiB

Main

#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

typedef long long ll;
typedef long double ld;

#define pb push_back
#define pii pair<int, int>
#define pll pair<ll, ll>
#define st first
#define nd second
#define ordered_set tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update>
#define debug false

const int MAXN = 300 * 1000;
ll a[MAXN];
ll t[MAXN];
ll b[MAXN];
ll m;
int n;

ll dziel (ll a, ll b) {
    return (a/b + (a % b != 0LL));
}

bool ok (ll d) {
    ll ile = 0;
    ll m2 = m * ll(n);
    for (int i = 0; i < n; i ++) {
        t[i] = d;
    }

    for (int i = 0; i < n; i ++) {
        if (b[i] >= a[i]) {
            continue;
        }
        ile += min(m, dziel(d, a[i]));
        t[i] -= min(m, dziel(d, a[i])) * a[i];
    }

    for (int i = 0; i < n; i ++) {
        if (t[i] > 0LL) {
            ile += dziel(t[i], b[i]);
        }
    }
    /*cout << ile << "\n";
    for (int i = 0; i < n; i ++) {
        cout << t[i] << " ";
    }
    cout << "\n";*/

    return (ile <= ll(n) * m);





}

int main () {
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    cin >> n >> m;

    for (int i = 0; i < n; i ++) {
        cin >> a[i];
    }

    for (int i = 0; i < n; i ++) {
        cin >> b[i];
    }

    ll p = 0, k = LLONG_MAX, wyn;

    while (p <= k) {
        ll sr = (p + k)/ 2LL;
        if (ok(sr)) {
            wyn = sr;
            p = sr + 1;
        } else {
            k = sr - 1;
        }
    }

    //cout << ok(8) << "\n";

    cout << wyn << "\n";

    return 0;
}

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