Submission #803680

#	Time	Username	Problem	Language	Result	Execution time	Memory
803680		vjudge1	Self Study (JOI22_ho_t2)	C++14	10 / 100	50 ms	5000 KiB

Main

#include<bits/stdc++.h>
#define fi first
#define se second
#define ll long long
using namespace std ;
const ll N = 3e5 ;
bool flag1 ;
ll n, m, l = 0, r = 1e18, a[N + 1], b[N + 1] ;
signed main()
{
    ios_base::sync_with_stdio( 0 ) ;
    cin.tie( 0 ) ;
    cout.tie( 0 ) ;
    cin >> n >> m ;
    for(ll i = 1 ; i <= n ; i++)
        cin >> a[i] ;
    for(ll i = 1 ; i <= n ; i++)
    {
        cin >> b[i] ;
        if(a[i] != b[i])
            flag1 = 1 ;
    }
    if(m == 1)
    {
        ll mn = 1e18 ;
        for(ll i = 1 ; i <= n ; i++)
            mn = min(mn, max(a[i], b[i])) ;
        cout << mn << '\n' ;
        return 0 ;
    }
    if(!flag1)
    {
        while(l + 1 < r)
        {
            bool flag = 0 ;
            ll mid = (l + r) / 2, cnt = 0 ;
            for(ll i = 1 ; i <= n ; i++)
            {
                cnt += (mid + b[i] - 1) / b[i] ;
                if(cnt < 0 || (mid + b[i] - 1) / b[i])
                    flag = 1 ;
            }
            if(cnt > n * m || flag)
                r = mid ;
            else
                l = mid ;
        }
        cout << l ;
        return 0 ;
    }
    return 0 ;
}

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