Mine is given below -
1) Mostly Ad Hoc
![:D](./images/smilies/icon_biggrin.gif)
2) Arithmatic / Algebra
3) Graph
4) Simulation
5) DP
Moderator: Board moderators
In 10845 you can try a maximum flow algorithm, but you'll have to modify it not to allow the two armies to be marching on a single path. Well, this might not be very helpful, but I also find it a difficult problem (look at its statistics).I'am trying to solve all kinds of the problems, but still there are some I have no idea how to solve.. Eg. 10840, 10845, 10857, ...
actually i love to enjoy numerical problem!
but the most frequently the ansewers go to TIME LIMIT EXEEDED!
what can i do?[/img]