His solution is so similar to mine that is scary. I also went thru the same optimization process. (e.g started with a while and changed that to a for later) I d

His solution is so similar to mine that is scary. I also went thru the same optimization process. (e.g started with a while and changed that to a for later) I didn't go farther because I didn't want to loose readability. void condense_by_removing( char *z_terminated , char char_to_remove ) { char *rptr = z_terminated; // read ptr char *wptr = z_terminated; // write ptr for(;*rptr; rptr++) { if (*rptr != char_to_remove) { *wptr++ = *rptr; } } *wptr = 0; }