I have recently attended a programming test in codility, and the question is to find the Number of bounded slice in an array..
I am just giving you breif explanation of
Here is my attempt at solving this problem:
- you start with p and q form position 0, min =max =0;
- loop until p = q = N-1
- as long as max-min<=k advance q and increment number of bounded slides.
- if max-min >k advance p
- you need to keep track of 2x min/max values because when you advance p, you might remove one or both of the min/max values
- each time you advance p or q update min/max
I can write the code if you want, but I think the idea is explicit enough...
Hope it helps.