Submission #907561

#	Time	Username	Problem	Language	Result	Execution time	Memory
907561		AlphaMale06	Self Study (JOI22_ho_t2)	C++14	10 / 100	72 ms	5208 KiB

Main

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
#define yes cout << "YES\n"
#define no cout << "NO\n"
#define F first
#define S second
#define pb push_back
#define mp make_pair
#define all(x) (x).begin(), (x).end()
#define int long long


void solve(){
	int n, m;
	cin >> n >> m;
	int a[n], b[n];
	for(int i=0; i< n; i++)cin >> a[i];
	for(int i=0; i< n; i++)cin >> b[i];
	int l=0; int r=1e18+1;
	int ans=0;
	if(m==1){
		ans=1e18;
		for(int i=0; i< n; i++){
			ans=min(ans, max(a[i], b[i]));
		}
		cout << ans << '\n';
		return;
	}
	while(l<=r){
		int s=l+r>>1;
		int save=n*m;
		for(int i=0; i< n; i++){
			int mx=max(a[i], b[i]);
			if(mx*m>=s)save-=(s+mx-1)/mx;
			else save-=m+(s-mx*m+b[i]-1)/b[i];
		}
		if(save>=0){ 
			ans=s;
			l=s+1;
		}
		else r=s-1;
	}
	cout << ans << '\n';
}


signed main(){
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	solve();
}

Compilation message (stderr)

Main.cpp: In function 'void solve()':
Main.cpp:32:10: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   32 |   int s=l+r>>1;
      |         ~^~

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