Remove extra white spaces in C++

Question

I tried to write a script that removes extra white spaces but I didn\'t manage to finish it.

Basically I want to transform abc sssd g g sdg gg gf into

Answer 1

Simple program to remove extra white spaces without using any inbuilt functions.

#include
#include
#include
using namespace std;

int main()
{
  char str[1200];
  int i,n,j,k, pos = 0 ;
  cout<<"Enter string:\n";
  gets(str);
  n = strlen(str);
  for(i =0;i<=n;i++)
  {
      if(str[i] == ' ')
      {
          for(j= i+1;j<=n;j++)
          {
                  if(str[j] != ' ')
                  {
                      pos = j;
                      break;
                  }
           }
         if(pos != 0 && str[pos] != ' ')
         {
            for(k =i+1;k< pos;k++)
             {   if(str[pos] == ' ')
                     break;
                 else{
                    str[k] = str[pos];
                    str[pos] = ' ';
                    pos++;
                 }

             }
         }

      }
  }
  puts(str); 
}