Suggested problems

How to handle back end in python?

Nov. 16, 2021, 1:09 p.m. by ghotojack

Biological Motivation


I am facing an issue my servers are not getting API features for payments, I am using instant cash for online banking. Help me out for [iRiverAmerica][1]


Help me out.


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