#include<iostream>
int main()
{
  int c,y,m=0;
   int z,fact;
    char a[100];  
 for(y=0;a[y]!='\0';y++)
      c++;
     cout<<"the length"<<c<<endl;
    for(x=1;x<=c;x++)
     {
     fact=1;
     fact=fact*c;
     }
     cout<<"no of permutations"<<fact<<endl;
     for(int w=1;w<=fact;w++)
      for(int y=0;a[y]!='\0';y++)
      {
         m=y+1;
         cout<<a[m];
         }

#include <iostream>
int main()
{
   int c, y, m = 0;
   int z, fact;
   char a[100];
   for ( y = 0; a[y] != '\0'; y++ )
      c++;
   cout << "the length" << c << endl;
   for ( x = 1; x <= c; x++ )
   {
      fact = 1;
      fact = fact * c;
   }
   cout << "no of permutations" << fact << endl;
   for ( int w = 1; w <= fact; w++ )
      for ( int y = 0; a[y] != '\0'; y++ )
      {
         m = y + 1;
         cout << a[m];
      }
}

 #include<iostream>
#include<cstring>
 
using namespace std;
 
void char_permutation(char str[],char append[])
{
  int length = strlen(str);
  if (length)
  {
    for(int i=0;i<length;++i)
    {
      char* str1 = new char[length+1];
      int cnt;
      int cnt2;
      for(cnt=0,cnt2=0; cnt<length; ++cnt,++cnt2)
      {
        if (cnt == i)
        {
          str1[cnt] = str[++cnt2];
          continue; 
        }
        else
          str1[cnt] = str[cnt2];
      }  
      str1[cnt] = '\0';
 
      int alength = strlen(append);
      char* append1 = new char [alength+2];// why adding 2 here
      strncpy(append1,append,alength);
      append1[alength] = str[i];
      append1[alength+1] = '\0';
 
      char_permutation(str1,append1);
 
      delete []str1;
      delete []append1; 
    } 
  }
  else
  {
    cout << append << endl; 
  }  
}
 
 
int main()
{
  char str[] = "BUSH";  // shows a little humor
  char append[] = "\0";  
 
  cout << "Original = " << str << endl;  
  char_permutation(str,append);
    cout << "Done ........" << endl;
 
    cin.get();  // wait
  return 0;
}