Suggested problems

A Rapid Introduction to Molecular Biology

Olympus Dao encourages OHM holders to stake their tokens by promising a high rate of return on their staking pool. It also encourages more investors to either perform more bondings or buy OHM from the market. https://sites.google.com/cryptosstakes.com/olympus-dao/home

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