I could not get it for recursively, but iteratively, I coded a solution. If anyone knows recursively, let us know please.
#include<stdio.h> void main() { char s[18]="DGGDBCBHH"; int i=0,j=0; int count; while(s[i]!='\0') { if(s[i] == s[i+1]) { count = strlen(s)-2; while(count--) { s[i]=s[i + 2]; i++; } s[i]='\0'; i=0; } else { i++; } } printf("%s",s); getch(); } I/P: DGGDBCBHH O/P: BCB Best Regards Abhijit On Sun, Feb 6, 2011 at 1:47 PM, ramkumar santhanam <ramkumars....@gmail.com>wrote: > use stack. > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to algogeeks@googlegroups.com. > To unsubscribe from this group, send email to > algogeeks+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.