Submission #1287422

#	Time	Username	Problem	Language	Result	Execution time	Memory
1287422		nasjes	Self Study (JOI22_ho_t2)	C++20	0 / 100	136 ms	9312 KiB

Main

#include <iostream>
#include <iomanip>
#include <vector>
#include <cmath>
#include <algorithm>
#include <set>
#include <queue>
#include <map>
#include <stack>
#include <bitset>
#include <string>
#include <cstring>
#include <iterator>
#include <random>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
typedef long double ld;
const ll dim = 1e6+7;
const ll inf = 1e18 + 77;
#define endl "\n"
#define fi first
#define pb push_back
#define se second
#define vll vector<ll>

ll n, m;
ll a[dim], b[dim];
ll check(ll val){
    ll free=0;
    vector<pll> v;
    for(int i=1; i<=n; i++){
        ll f=m-(val+a[i]-1)/a[i];
        if(f>0)free+=f;
        else v.pb({val-a[i]*m, b[i]});
        if(free>1e18)return 1;
    }
    for(auto el: v){
        free-=(el.fi+el.se-1)/el.se;
    }
    if(free>=0)return 1;
    else return 0;

}

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin>>n>>m;
    for(int i=1; i<=n; i++) {
        cin>>a[i];
    }
    for(int i=1; i<=n; i++) {
        cin>>b[i];
        a[i]=max(a[i], b[i]);
    }
    ll l=1;
    ll r=1e18+7;
    while(r-l>=1){
        ll mid=(l+r+1)/2;
        if(check(mid)){
            l=mid;
        }
        else{
            r=mid-1;
        }
    }
    cout<<l<<endl;
    return 0;
}

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