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  1. #include <iostream>
  2. #include <set>
  3. using namespace std;
  4.  
  5. int main() {
  6.     string word;
  7.     cin >> word;
  8.  
  9.     set<char> letters;
  10.  
  11.     for (char c : word) {
  12.         letters.insert(c);
  13.     }
  14.  
  15.     if (letters.size() == word.size()) {
  16.         cout << "ТАК" << endl;
  17.     } else {
  18.         cout << "НІ" << endl;
  19.     }
  20.  
  21.     return 0;
  22. }
  23.  
Success #stdin #stdout 0.01s 5272KB
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Standard input is empty
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ТАК
https://ideone.com/ldJQEt
трикутник спадкування рівнобедренний
language:
C++14 (gcc 8.3)
created:
2 days ago
visibility:
public

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