Ankit_132

A

Jul 22nd, 2023
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C++ 0.38 KB | None | 0 0
  1.  
  2. #include <bits/stdc++.h>
  3.  
  4. using namespace std;
  5.  
  6. #define ll     long long
  7. #define _test   int _TEST; cin>>_TEST; while(_TEST--)
  8.  
  9. int main()
  10. {
  11.     set<char> st;
  12.     string s;
  13.     int n;
  14.     cin>>n>>s;
  15.  
  16.     for(int i=0; i<n; i++)
  17.     {
  18.         st.insert(s[i]);
  19.  
  20.         if(st.size() == 3)
  21.         {
  22.             cout<<i+1<<"\n";
  23.             break;
  24.         }
  25.     }
  26. }
  27.  
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