Suggested problems

Drift Hunters – the most popular video game today!

March 7, 2023, 4:10 a.m. by andrewmoon

Biological Motivation

In the video game [Drift Hunters][1], players search for the finest courses to create using vintage vehicles like the Toyota AE86 Thunder, Pontiac Trans Am, and 2016 Fiesta. Why not play Drift Hunters and tell us what you think? ...



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