Submission #244616

#	Time	Username	Problem	Language	Result	Execution time	Memory
244616		Nightlight	medians (balkan11_medians)	C++14	100 / 100	38 ms	3320 KiB

medians

#include <bits/stdc++.h>
#define pii pair<long double, int>
using namespace std;

int N;
bool vis[200005];
int A[200005];
int mn, mx;
int p;

void addmn() {
  while(vis[mn] == 1) mn++;
  vis[mn] = 1;
  A[++p] = mn;
}

void addmx() {
  while(vis[mx] == 1) mx--;
  vis[mx] = 1;
  A[++p] = mx;
}

int main() {
  ios_base::sync_with_stdio(0);
  cin >> N;
  cin >> A[1];
  int bef = A[1], now;
  vis[A[1]] = 1;
  mn = 1, mx = N * 2 - 1;
  p = 1;
  for(int i = 2; i <= N; i++) {
    cin >> now;
    if(now > bef) {
      if(vis[now]) {
        addmx();
        addmx();
      }else {
        vis[now] = 1;
        A[++p] = now;
        addmx();
      }
    }else if(now < bef) {
      if(vis[now]) {
        addmn();
        addmn();
      }else {
        vis[now] = 1;
        A[++p] = now;
        addmn();
      }
    }else {
      addmx();
      addmn();
    }
    bef = now;
  }
  for(int i = 1; i <= p; i++) {
    cout << A[i] << " ";
  }
  cin >> N;
}

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