Hi all,

Problem Statement I need to recognize the word when a sign is performed.

I am currently working on a project for Indian Sign Language Recognition. I've segmented the head and hand regions. I've used particle filter to track these 3 regions and I obtaining the trace of each of these gestures as the feature(using centroid of each region). After obtaining the trace , can I use DTW(dynamic Time Warping Algorithm) to classify the gestures?? Or can you suggest some other method?

Is it possible to findT kth largest element in the tree. With update and query operation ?

Codeforces normally suggest us to use %I64 for long long. But when I try it in my g++ complier with ubuntu(12.04) I get a warning stated "warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’". Can anyone suggest how do i remove warning and what is %I64?