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  1. #include<stdio.h>
  2. #include<iostream>
  3. using namespace std;
  4.  
  5. string word_wrap(string str, int len)
  6. {
  7.     int st=0;
  8.     int sz=str.size();
  9.     string ans;
  10.  
  11.     while(st< sz)
  12.     {
  13.         int ed=st+len;
  14.         int _end=ed < str.size() ? ed : str.size()-1;
  15.  
  16.         if(_end==str.size()-1)
  17.         {
  18.             _end++;
  19.             str[_end]='\n';
  20.  
  21.         }
  22.         else if(str[_end]==' ')
  23.         {
  24.             str[_end]='\n';
  25.             _end++;
  26.         }
  27.         else
  28.         {
  29.             int ed1=_end;
  30.             while(_end > st and str[_end]!=' ')  _end--;
  31.  
  32.             if(st!=_end)
  33.             {
  34.                 str[_end++]='\n';
  35.             }
  36.             else
  37.                 str.insert(ed1++,1,'\n'), _end=ed1;
  38.         }
  39.         st=_end;
  40.     }
  41.     return str;
  42. }
  43.  
  44. int main()
  45. {
  46.     string s="i am going to cuet";
  47.     cout<<word_wrap(s,5)<<endl;
  48. }
  49.  
Success #stdin #stdout 0s 15232KB
comments (?)
stdin
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Standard input is empty
stdout
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i am
going
to
cuet
https://ideone.com/IusYhE
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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