Submission #814206

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
814206	2023-08-08 06:19:58	MohamedAhmed04	Group Photo (JOI21_ho_t3)	C++14	100 / 100	207 ms	67672 KiB

Main

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#include <bits/stdc++.h>
using namespace std ;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds ;
template<class T> using ordered_set = tree<T , null_type , less<T> , rb_tree_tag , tree_order_statistics_node_update> ;
const int MAX = 5000 + 10 ;
int arr[MAX] ;
int n ;
int pos[MAX] , cnt[MAX] , cnt2[MAX][MAX] ;
int dp[MAX] ;
int main()
{
  ios_base::sync_with_stdio(0) ;
  cin.tie(0) ;
  cin>>n ;
  for(int i = 1 ; i <= n ; ++i)
    cin>>arr[i] ;
  ordered_set<int>s ;
  for(int i = 1 ; i <= n ; ++i)
  {
    pos[arr[i]] = i ;
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 32 / 32
• Subtask 4: 20 / 20
• Subtask 5: 36 / 36