Suggested problems

Buy All Modafinil & Armodafinil Tablets @Buy Modafinil US

Feb. 8, 2022, 1:55 p.m. by annebell

Biological Motivation

Buy any Modafinil & Armodafinil tablet online at best price with discount, 100% safe, 24/7 customer care service, easy returns online in USA @Buymodafinilus https://buymodafinilus.com/

Problem

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

AGCTTTTCATTCTGACTGCAACGGGCAATATGTCTCTGTGTGGATTAAAAAAAGAGTGTCTGATAGCAGC

Sample Output

20 12 17 21