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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5.     int n;	
  6.  
  7.     cin >> n;
  8.     string s, t;	
  9.  
  10.     set<string> ss;
  11.     while(n--)	{ 
  12.     	cin >> s >> t; 
  13.     	ss.insert(s + t);	
  14.     }
  15.  
  16.     cout << ss.size();
  17. }
  18.  
Success #stdin #stdout 0.01s 5512KB
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https://ideone.com/Tix1B1
language:
C++14 (gcc 8.3)
created:
1 year ago
visibility:
public

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