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  1.  int t;
  2.      cin>>t;
  3.      while(t--)
  4.      {
  5.        int n;
  6.        cin>>n;
  7.        map<int,bool>m;
  8.        vector<int>v;
  9.  
  10.        for(int i=0;i<n;i++)
  11.        {
  12.         int x;
  13.         cin>>x;
  14.         v.push_back(x);
  15.        }
  16.        vector<int>copy;
  17.  
  18.        for(int i=0;i<n;i++){
  19.           int x=v[i];
  20.  
  21.           while(i<n and x==v[i]){
  22.             i++;
  23.           }
  24.           i--;
  25.           copy.push_back(v[i]);
  26.        }
  27.        v=copy;
  28.       // show(v);
  29.  
  30.  
  31.         if(n==1){
  32.         YES;
  33.         continue;
  34.        }
  35.  
  36.        int c=0;
  37.        n=v.size();
  38.        if(n==1){
  39.            NO;
  40.            continue;
  41.        }
  42.        for(int i=0;i<n;i++)
  43.        {
  44.         if(i==0 and v[i]<v[i+1]){
  45.             c++;
  46.         }
  47.         else if(i==n-1 and v[i]<v[i-1])c++;
  48.         else if(i>0 and i<n-1)
  49.         {
  50.             if(v[i]<v[i+1] and v[i]<v[i-1])
  51.                 c++;
  52.         }
  53.  
  54.        /// if(c>1)break;   
  55.        }
  56.  
  57.        if(c==0 or c>1)NO;
  58.        else YES;
  59.        //cout<<c<<endl;
  60.      }
  61.  
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
prog.cpp:2:6: error: ‘cin’ does not name a type
      cin>>t;
      ^~~
prog.cpp:3:6: error: expected unqualified-id before ‘while’
      while(t--)
      ^~~~~
stdout
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Standard output is empty
https://ideone.com/3eEgf3
language:
C++14 (gcc 8.3)
created:
1 year ago
visibility:
secret

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