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  1. #include <iostream>
  2. #include <set>
  3. #include <string>
  4. using namespace std;
  5.  
  6. int main() {
  7.     string text;
  8.     getline(cin, text);
  9.  
  10.     set<char> digits;
  11.  
  12.     for (char c : text) {
  13.         if (c >= '0' && c <= '9') {
  14.             digits.insert(c);
  15.         }
  16.     }
  17.  
  18.     cout << digits.size() << endl;
  19.  
  20.     return 0;
  21. }
Success #stdin #stdout 0.01s 5288KB
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https://ideone.com/URbEfs
трикутник спадкування рівнобедренний
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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