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  1. #include <bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. int main()
  6. {
  7.     ios_base::sync_with_stdio(false);
  8.     cin.tie(0);
  9.     cout.tie(0);
  10.  
  11.     list <string> li;
  12.     int n; cin>>n;
  13.     string s;
  14.     while(n--){
  15.         cin>>s;
  16.         if(li.empty()){
  17.             li.push_back(s);
  18.         }
  19.         else{
  20.             bool f=0;
  21.             auto it=li.begin();
  22.             for( ; it!=li.end(); it++){
  23.                 if(*it==s){
  24.                     f=1;
  25.                     break;
  26.                 }
  27.             }
  28.             if(f==1){
  29.                  li.erase(it);
  30.                  li.push_back(s);
  31.             }
  32.             else li.push_back(s);
  33.         }
  34.     }
  35.     auto it2=li.end();
  36.     it2--;
  37.     auto it3=li.begin();
  38.     it3--;
  39.     for( ; it2!=it3; it2--) cout<<*it2<<"\n";
  40.     return 0;
  41. }
Success #stdin #stdout 0.01s 5612KB
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Standard input is empty
stdout
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language:

						
C++ (gcc 8.3)

					

					

						
created:
								
						
2 years ago

					

					

						
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