Count Frequency in Python | Dataford Interview Questions

Write a Python program to count the frequency of each element in a list.

Asked in the Technical stage. Implement the function below using a dictionary. The input is a list of integers, and the output is a dictionary whose keys are the elements converted to strings and whose values are their occurrence counts.

Function

def count_frequencies(items):

Constraints

0 <= len(items) <= 1000
-10^9 <= items[i] <= 10^9
The output dictionary uses string keys and integer counts

Function Signature

def count_frequencies(items):

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