Submission #734866

#	Time	Username	Problem	Language	Result	Execution time	Memory
734866		rahidilbayramli	Self Study (JOI22_ho_t2)	C++17	100 / 100	408 ms	11312 KiB

Main

#include<bits/stdc++.h>
#define ll long long
#define pll pair<ll, ll>
#define pii pair<int, int>
#define vl vector<ll>
#define sl set<ll>
#define pb push_back
#define all(v) v.begin(), v.end()
#define f first
#define s second
#define ld long double
using namespace std;
const int sz = 3e5+5;
ll n, m, i, j;
ll a[sz], b[sz];
bool check(ll mid)
{
    ll need = 0;
    for(i = 0; i < n; i++)
    {
        ll have = max(a[i], b[i]) * m, val = mid / max(a[i], b[i]);
        if(mid % max(a[i], b[i]))    val++;
        need += min(val, m);
        if(mid > have)    need += ceil((ld)(mid-have) / (ld)(b[i]));
        if(need > n * m)    return false;
    }
    return (need <= n * m);
}
int main()
{
    cin >> n >> m;
    for(i = 0; i < n; i++)    cin >> a[i];
    for(i = 0; i < n; i++)    cin >> b[i];
    ll l = 1, r = 1e18, k = 0;
    while(l <= r)
    {
        ll mid = (l + r) / 2;
        if(check(mid))
        {
            k = mid;
            l = mid + 1;
        }
        else    r = mid - 1;
    }
    cout << k << "\n";
}

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