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  1. #include <iostream>
  2. #include <string>
  3. #include <algorithm>
  4. #include <cctype>
  5.  
  6.  
  7. bool is_valid_word(const std::string& word)
  8. {
  9.     return std::all_of(word.begin(), word.end(), isalpha);
  10. }
  11.  
  12. int main()
  13. {
  14.     std::string word;
  15.     std::cin >> word;
  16.     while(!is_valid_word(word)) {
  17.         std::cout << word << " is not a valid word\n";
  18.         std::cin >> word;
  19.     }
  20.     std::cout << word << " is valid!";
  21. }
  22.  
Success #stdin #stdout 0s 3476KB
comments (?)
stdin 
arg21
hello
stdout 
arg21 is not a valid word
hello is valid!
https://ideone.com/fdRIWl
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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