Estimation is an important part of software development and its incredibly difficult to make correct estimation. Over the time, I have realized that on most occasions my estimates were very aggressive despite keeping some buffer time. Then one day I decided to try out something new. I divided the feature in small tasks and then…
The title seemed to bug me a lot, until today when i found a really good explanation. If you google for the difference between Mutex and Semaphore you will see in most of the places it is mentioned that mutex is a binary semaphore. But mutex is not actually a binary semaphore. See these links…
Coin denomination problem is a very common question asked in interviews. It involves Greedy Approach, Dynamic Programming and Recursion. You may find a lot of stuff on the internet if you just google out “Coin denomination problem”. A link that was really helpful for me to analyse the problem is http://www.ccs.neu.edu/home/jaa/CSG713.04F/Information/Handouts/dyn_prog.pdf. Some other helpful text…