Suggested problems

How to decrease spam score of the Website

Oct. 1, 2020, 10:22 a.m. by Naveed Aziz

Biological Motivation

I'm a blogger of this website and don't know how to reduce spam score of this website The [News Engine USA][1]



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