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  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4. int main() {
  5.     cout << "Enter da string" << endl;
  6.     string s;
  7.     getline(cin, s);
  8.     int i = 1;
  9.     //удаляем дубликаты пробелов
  10.     while (i < s.length()) {
  11.         if (s.at(i) == ' ' and s.at(i) == s.at(i-1)){
  12.             s.erase(i, 1);
  13.         } else {
  14.             i++;
  15.         }
  16.     }
  17.     //если есть первый пробел
  18.     if (s.at(0) == ' '){
  19.         s.erase(0, 1);
  20.     }
  21.     //если есть последний пробел
  22.     if (s.at(s.length()-1) == ' '){
  23.         s.erase(s.length()-1);
  24.     }
  25.     cout << s;
  26.  
  27.     return 0;
  28. }
Success #stdin #stdout 0s 2988KB
comments (?)
stdin
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   asdlkfj  asdfsafd  sdlkfj asdfasdf
stdout
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Enter da string
asdlkfj asdfsafd sdlkfj asdfasdf
https://ideone.com/kjlfsq
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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