Problem Problem statement: Write a function which returns the total number of combinations whose difference is k. For example, 4 […]

Problem Today on Stack Overflow the following question came https://stackoverflow.com/questions/39393112/find-out-if-string-contains-english-words-only The question itself has following prerequisites: A system dictionary that […]

Problem The “Cyraz” encryption algorithm was presented on SOPT community. This algorithm makes a cypher using a private key given […]