Submission #1195421

#	Time	Username	Problem	Language	Result	Execution time	Memory
1195421		JuanJL	Self Study (JOI22_ho_t2)	C++20	0 / 100	208 ms	7416 KiB

Main

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp> 

#define fst first 
#define snd second
#define pb push_back
#define forn(i,a,b) for(int i = a; i < b; i++)
#define ALL(x) x.begin(),x.end()
#define SZ(x) (int)x.size()
#define mset(a,v) memset((a),(v),sizeof(a))
#define FIN ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define dbg(v) cout<<"Line("<<__LINE__<<"): "<<#v<<" = "<<v<<'\n';
#define pi pair<int,int>
#define pll pair<ll,ll>
typedef long long ll;
using namespace std;
using namespace __gnu_pbds;
typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> indexed_set;
typedef tree<int,null_type,less_equal<int>,rb_tree_tag,tree_order_statistics_node_update> indexed_multiset;

int main(){
	ll n,m; cin>>n>>m;
	vector<ll> a(n); forn(i,0,n) cin>>a[i];
	vector<ll> b(n); forn(i,0,n) cin>>b[i];
	
	forn(i,0,n) a[i]=max(a[i],b[i]);
	
	ll l = 1; ll r = 9000000000000000000+5;
	while(l<=r){
		ll mid=(l+r)/2;
		
		//cout<<mid<<'\n';
		
		ll libres = 0;
		vector<ll> falta(n,mid);
		forn(i,0,n){
			
			if(m*a[i]<mid){
				falta[i]=mid-(m*a[i]);
				continue;
			}else{
				falta[i]=0;
			}
			
			ll nl = mid/a[i] + (mid%a[i]!=0?1:0);
			libres+=max((ll)0,m-nl);
		}
		
		forn(i,0,n) if(falta[i]>0){
			ll nec = falta[i]/b[i] + (falta[i]%b[i]!=0?1:0);
			libres-=nec;
		}
		
		if(libres>=0) l=mid+1;
		else r=mid-1;
	}
	cout<<r<<'\n';
	return 0;
}

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