Suggested problems

Hotmail Support

Sept. 6, 2022, 7:59 p.m. by Tyler jones

Biological Motivation

Is Hotmail Support available 24x7? Yes, Hotmail Support is available 24x7 to all of their users. Hotmail is one of the world’s leading, prominent and resourceful email services, used by billions worldwide. It offers a consistent and dependable 24x7 customer care support that resolves queries of their customers.


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