Suggested problems

Best game

April 4, 2022, 2:46 a.m. by lawn123

Biological Motivation

Nowadays, free games online are becoming more and more popular among young people. One of the most plausible reasons for this phenomenon is that they can be played anywhere as long as a computer is connected to the network. If you want to have time to relieve stress after tiring working hours, Free Games Online will be the place for you to experience a lot of adventure games, brain games, and lots of interesting games. Here are the top 3 games worth playing by gamers in 2022. All are very easy to play, so pick up your mouse and enjoy it. brawlhalla online, Smash kart, 1V1 LOL

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