Suggested problems

Start Your real-time chat app Venture With Appdupe’s Whatsapp Clone App

Sept. 28, 2021, 11:22 a.m. by jackricher

Biological Motivation

The [WhatsApp clone][1] is a replication of the already existing standard model. The WhatsApp clone is also available as a ready-made solution that enables entrepreneurs to launch their Messenger app in no time. However, with a white-label script, it becomes so easy to rebrand the app to add their business credentials.



A string is simply an ordered collection of symbols selected from some alphabet and formed into a word; the length of a string is the number of symbols that it contains.

An example of an DNA string (whose alphabet contains the symbols A, C, G, and T) is ATGCTTCAGAAAGGTCTTACG.

Given: A DNA string $s$ of length at most 1000 nucleotides.

Return: Four integers corresponding to the number of times that the symbols A, C, G, and T occur in $s$.

Sample Dataset


Sample Output

20 12 17 21