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  1.  #include<bits/stdc++.h>
  2. #include <cmath>
  3. using namespace std;
  4.  
  5. /* 1 x y
  6.  * 2 x */
  7.  
  8. int main() {
  9.  ios_base::sync_with_stdio(false);
  10.  cin.tie(NULL);
  11.  cout.tie(NULL);;
  12.  
  13.  int n;
  14.  cin>>n;
  15.  map <string, int> mp;
  16.  for(int i=0;i<n;i++) {
  17.   string s;
  18.   cin>>s;
  19.   if (mp[s]==0) {
  20.    cout<<"OK\n";
  21.    mp[s]=1;
  22.   }
  23.   else {
  24.  
  25.    cout<<s<<mp[s]<<"\n";
  26.    mp[s]++;
  27.   }
  28.  }
  29.  
  30.  
  31.  
  32.  return 0;
  33. }
  34.  
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
copy 
4
abacaba
acaba
abacaba
acab
stdout
copy 
OK
OK
abacaba1
OK
https://ideone.com/sk3v8e
language:
C++14 (gcc 8.3)
created:
5 hours ago
visibility:
public

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