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  1. #include <iostream>
  2. #include<bits/stdc++.h>
  3.  
  4. using namespace std;
  5.  
  6. int main() {
  7. 	// your code goes here
  8. 	int n;
  9. 	cin>>n;
  10. 	vector<int> arr(n);
  11. 	for(int i=0;i<n;i++){
  12. 		cin>>arr[i];
  13.  
  14. 	}
  15.  
  16.    vector<int> suffix(n+1,0);
  17.    for(int i=n-1;i>=0;i--){
  18.    	suffix[i]=max(suffix[i+1],arr[i]);
  19.    }
  20.    int mini = arr[0];
  21.  
  22.    for(int i=1;i<n-1;i++){
  23.    	  if(arr[i]>mini && arr[i]<suffix[i+1]){
  24.    	  	cout<<"true"<<endl;
  25.    	  	return 0;
  26.  
  27.  
  28.    	  }
  29.    	  mini = min(mini,arr[i]);
  30.  
  31.    }
  32.  
  33.    cout<<"false"<<endl;
  34.  
  35. 	return 0;
  36. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
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8

18 5 4 3 2 1 8 10
stdout
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true
https://ideone.com/p5Imbm
language:
C++14 (gcc 8.3)
created:
3 days ago
visibility:
public

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