Program to combine two strings by using pointers

void main(void){

  char sta[]="Hello";

  char stb[]="World";

  char stc[20];

  char *s=stc;

  char *ptr=sta;

  while(*ptr!='\0'){

  *s=*ptr; *s++; *ptr++;

  }

  *s=' '; *s++; ptr=stb;

  while(*ptr!='\0'){

  *s=*ptr; *s++; *ptr++;

  }

  *s='\0';

  cout<<stc<<endl;

}