Submission #637883

#	Time	Username	Problem	Language	Result	Execution time	Memory
637883		google	medians (balkan11_medians)	C++17	100 / 100	72 ms	12356 KiB

medians

#include<bits/stdc++.h>
using namespace std;
int main(){
	cin.tie(0)->sync_with_stdio(0);
	int n,l,r,cur,la; cin >> n;
	l = 1,r = n*2-1;
	vector<int> ans;
	set<int> used;
	cin >> cur;
	used.insert(cur);
	ans.push_back(cur);
	for (int i = 0;i<n-1;i++) {
		la = cur; cin >> cur;
		if (used.count(cur)){
			if (cur == la){
				while (used.count(l)) l++;
				used.insert(l);
				ans.push_back(l);
				l++;
				while (used.count(r)) r--;
				used.insert(r);
				ans.push_back(r);
				r--;
			}
			else{
				if (cur > la){
					while (used.count(r)) r--;
					used.insert(r);
					ans.push_back(r);
					r--;
					while (used.count(r)) r--;
					used.insert(r);
					ans.push_back(r);
					r--;
				}
				else{
					while (used.count(l)) l++;
					used.insert(l);
					ans.push_back(l);
					l++;
					while (used.count(l)) l++;
					used.insert(l);
					ans.push_back(l);
					l++;
				}
			}
		}
		else{
			ans.push_back(cur);
			used.insert(cur);
			if (cur > la){
				while (used.count(r)) r--;
				used.insert(r);
				ans.push_back(r);
				r--;
			}
			else{
				while (used.count(l)) l++;
				used.insert(l);
				ans.push_back(l);
				l++;
			}
		}
	}
	for (auto a:ans) cout << a << ' ';
	return 0;
}

• Subtask 1: 65 / 65
• Subtask 2: 35 / 35