## April 2012 Contest Problem Editorials |

**Problem Tester** for the contest was Hiroto Sekido.

**Find a special connected block (written by shangjingbo).** The Editorials can be found here.

**Double Strings (written by Sergey Kulik).** The Editorials can be found here.

**Greatest Dumpling Fight (written by ishani parekh).** The Editorials can be found here.

**Lucky Array (written by Vitaliy).** The Editorials can be found here.

**Stacking Pancakes (written by Kaushik Iska).** The Editorials can be found here.

**Parallel Computing (written by Tomaz Hocevar).** The Editorials can be found here.

**PDS Number (written by Anh Duong Quang).** The Editorials can be found here.

**Fit to Play (written by Vamsi Kavala).** The Editorials can be found here.

**Similar Graphs (written by David Stolp).** The Editorials can be found here** **

**Substrings on a Tree (written by Sergey Kulik).** The Editorials can be found here.

## use memoization. save results

2★gargnitin123@ 11 Apr 2012 06:58 PM## @rajneesh2k10 yes you are

isha_adm@ 13 Apr 2012 10:31 PM## Take the case x=10^18, y=999;

isha_adm@ 14 Apr 2012 02:38 PM## @ashmish2: no it is not, for

4★sourabh912@ 15 Apr 2012 08:15 PM## check out this link:

3★kq_viet@ 18 Apr 2012 12:17 PM