제출 #595228

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
595228		PoPularPlusPlus	Self Study (JOI22_ho_t2)	C++17	62 / 100	212 ms	5900 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ull unsigned long long 
#define pb(e) push_back(e)
#define sv(a) sort(a.begin(),a.end())
#define sa(a,n) sort(a,a+n)
#define mp(a,b) make_pair(a,b)
#define vf first
#define vs second
#define ar array
#define all(x) x.begin(),x.end()
const int inf = 0x3f3f3f3f;
const int mod = 1000000007; 
const double PI=3.14159265358979323846264338327950288419716939937510582097494459230;
bool remender(ll a , ll b){return a%b;}

//freopen("problemname.in", "r", stdin);
//freopen("problemname.out", "w", stdout);

void solve(){
	ll n , m;
	cin >> n >> m;
	ll arr[n] , b[n];
	for(int i = 0; i < n; i++)cin >> arr[i];
	for(int i = 0; i < n; i++)cin >> b[i];
	ll l = 1,  r = 1e16 , ans;
	while(l <= r){
		ll mid = (l + r)/2;
		ll chance = 0;
		for(int i = 0; i < n; i++){
			ll sum = max(arr[i] , b[i]) * m;
			if(sum <= mid){
				ll x = mid - sum;
				chance -= x / b[i] + remender(x , b[i]);
			}
			else {
				ll need = mid / max(arr[i] , b[i]) + remender(mid , max(arr[i] , b[i]));
				chance += m - need;
			}
			if(chance + n * m < 0)break;
		}
		if(chance >= 0){
			ans = mid;
			l = mid + 1;
		}
		else r = mid - 1;
	}
	cout << ans << '\n';
}

int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
	//int t;cin >> t;while(t--)
	solve();
	return 0;
}

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