Submission #779159

#	Time	Username	Problem	Language	Result	Execution time	Memory
779159		vjudge1	Cipele (COCI18_cipele)	C++17	36 / 90	31 ms	1612 KiB

cipele

//#include<bits/stdc++.h>
#include<iostream>
#include<bitset>
#include<algorithm>
using namespace std;
#define lalala ios_base::sync_with_stdio(false);cin.tie(NULL);
#define endl "\n"
#define pb push_back
#define N 100005
bitset<N>  var;
int main(){
	lalala;
	int n,m;cin>>n>>m;

	int sa[n],sol[m];
	for(int i=0;i<n;i++)cin>>sa[i];
	for(int i=0;i<m;i++)cin>>sol[i];
	sort(sa,sa+n);
	sort(sol,sol+m);
	if(n==m){
		int mx=0;
		for(int i=0;i<n;i++)mx=max(mx,abs(sa[i]-sol[i]));
		cout<<mx<<endl;
		return 0;
	}

	if(n<m){
		int mx=0;
		for(int i=0;i<n;i++){
			int l=0,r=m-1;
			while(l<r){
				int mid=(l+r)/2;

				//cout<<l<<" "<<r<<" "<<mid<<" "<<sol[mid]<<" "<<sa[i]<<endl;
				if(sol[mid]>=sa[i]){
					r=mid;
				}
				else l=mid+1;
			}
			int a=l,b=l;
			if(l!=0)a--;
			if(var[a]&&a){
				a--;
			}
			while(var[b]&&b!=m-1){
				b++;
			}
			//cout<<a<<" "<<b<<endl;
			if(var[a]||abs(sol[b]-sa[i])<abs(sol[a]-sa[i])){
				mx=max(mx,abs(sol[b]-sa[i]));
				var[b]=1;
			}
			else{
				mx=max(mx,abs(sol[a]-sa[i]));
				var[a]=1;
			}
		}
		cout<<mx<<endl;
	}
	else{
		int mx=0;
		for(int i=0;i<m;i++){
			int l=0,r=n-1;
			while(l<r){
				int mid=(l+r)/2;
				if(sa[mid]>sol[i]){
					r=mid;
				}
				else l=mid+1;
			}
			int a=l,b=l;
			if(l!=0)a--;
			if(var[a]&&a){
				a--;
			}
			while(var[b]&&b!=n-1){
				b++;
			}

			//cout<<i<<" "<<a<<" "<<b<<endl;
			if(var[a]||abs(sa[b]-sol[i])<abs(sa[a]-sol[i])){
				mx=max(mx,abs(sa[b]-sol[i]));
				var[b]=1;
			}
			else{
				mx=max(mx,abs(sa[a]-sol[i]));
				var[a]=1;
			}
		}
		cout<<mx<<endl;
	}

}

• Subtask 1: 9 / 9
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 9 / 9
• Subtask 5: 0 / 9
• Subtask 6: 0 / 9
• Subtask 7: 0 / 9
• Subtask 8: 0 / 9
• Subtask 9: 0 / 9
• Subtask 10: 0 / 9