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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. bool small(int a[],int pos,int num,int n)
  4. {
  5.      for(int i=pos;i<n ;i++)
  6.    {
  7.        if(num>a[pos])
  8.         return false;
  9.    }
  10.    return true;
  11. }
  12.  
  13. int main()
  14. {
  15.     int in[1000],fin[1000];
  16.     stack <int> s;
  17.     int t;
  18.     cin>>t;
  19.     while(t--)
  20.     {   int n,x=0;
  21.         cin>>n;
  22.         for(int i=0;i<n;i++)
  23.         {
  24.             cin>>in[i];
  25.         }
  26.         for(int i=0;i<n;i++)
  27.         {
  28.            if(small(in,i+1,in[i],n))
  29.            {
  30.                fin[x]=in[i];
  31.                x++;
  32.            }
  33.            else
  34.             s.push(in[i]);
  35.          }
  36.          while(!s.empty())
  37.             {   //cout<<s.top();
  38.               fin[x]=s.top();
  39.               s.pop();
  40.               x++;
  41.               }
  42.          int count1=0;
  43.          for(int i=x-1;i>0;i--)
  44.          {
  45.              if(fin[i]<=fin[i-1])
  46.                 count1++;
  47.          }
  48.          if(count1==0)
  49.             cout<<"Yes";
  50.          else
  51.             cout<<"No";
  52.     }
  53.  
  54.     return 0;
  55. }
  56.  
Success #stdin #stdout 0s 15240KB
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NoYesYes
https://ideone.com/SkNg5N
language:
C++14 (clang 8.0)
created:
4 years ago
visibility:
public

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