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  1. #include<iostream>
  2. #include<string>
  3. using namespace std;
  4.  
  5. void RevWords(string inp);
  6.  
  7.  
  8. int main()
  9. {
  10.      string input;
  11.  
  12.      cout<<"Enter Sring:"<<endl;
  13.      getline(cin,input);
  14.      cout<<"Entered String:"<<input<<endl;
  15.      RevWords(input);
  16.  
  17.      return 0;
  18. }
  19.  
  20. void RevWords(string inp)
  21. {
  22.    int wordEnd=0,indexS=0,indexE=0;
  23.    string newStr;
  24.    newStr=inp;
  25.  
  26.    while(wordEnd<=inp.length())
  27.    {
  28.        if(wordEnd < inp.length() && inp[wordEnd] != ' ')
  29.       {
  30.          wordEnd++;
  31.       }
  32.       else
  33.       { 
  34.          if(inp[wordEnd] == ' ' || inp[wordEnd] == '\0')
  35.          {
  36.              indexE=wordEnd-1;
  37.              while(indexS<wordEnd)
  38.              {
  39.                 newStr[indexS]=inp[indexE];
  40.                 indexS++;
  41.                 indexE--;
  42.              }
  43.              newStr[indexS]=' ';
  44.              indexS++;
  45.          }
  46.          wordEnd++;
  47.        }    
  48.    }
  49.    cout<<newStr<<endl;
  50. }
Success #stdin #stdout 0s 3468KB
comments (?)
stdin
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words are fleeting
stdout
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Enter Sring:
Entered String:words are fleeting
sdrow era gniteelf
https://ideone.com/Byqxcd
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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