frequency-counting

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Count Occurrences of Anagrams

Last updated: 12 September 2023

Given a word and a text, return the count of the occurrences of anagrams of the word in the text(For eg: anagrams of word for are for, ofr, rof etc.))Examples:Input : forx ...read more

Counting frequencies of array elements

Last updated: 22 March 2023

Given an array which may contain duplicates, print all elements and their frequencies.Examples:Input : arr[] = {10, 20, 20, 10, 10, 20, 5, 20}Output : 10 3 20 4 ...read more

Check if two strings are permutation of each other

Last updated: 19 May 2023

Write a function to check whether two given strings are Permutation of each other or not. A Permutation of a string is another string that contains same characters, only t ...read more

Counting the frequencies in a list using dictionary in Python

Last updated: 24 March 2023

Given an unsorted list of some elements(which may or may not be integers), Find the frequency of each distinct element in the list using a Python dictionary.Example:Input: ...read more

Python dictionary-programs

Find frequency of each word in a string in Python

Last updated: 20 February 2023

Write a python code to find the frequency of each word in a given string. Examples:Input : str[] = "Apple Mango Orange Mango Guava Guava Mango" Output : frequency of Appl ...read more

Count occurrences of elements of list in Java

Last updated: 31 May 2022

Suppose we have an elements in ArrayList, we can count the occurrences of elements present in a number of ways.HashMapThis data structure uses hash function to map similar ...read more

Find one extra character in a string

Last updated: 19 April 2023

Given two strings which are of lengths n and n+1. The second string contains all the characters of the first string, but there is one extra character. Your task is to find ...read more

Check if two strings have a common substring

Last updated: 27 January 2023

You are given two strings str1 and str2. You have to check if the two strings share a common substring.Examples :Input : str1 = "HELLO" str2 = "WORLD"Output : YESEx ...read more

Check whether second string can be formed from characters of first string

Last updated: 29 September 2022

Given two strings str1 and str2, check if str2 can be formed from str1Example :Input : str1 = geekforgeeks, str2 = geeksOutput : YesHere, string2 can be formed from string ...read more

Frequency of a Substring in a String

Last updated: 18 April 2023

Given an input string and a pattern, the task is to find the frequency of occurrences of the string pattern in a given string.Examples:Input: pattern = "man", string = "dh ...read more

Program to sort string in descending order

Last updated: 01 November 2022

Given a string, sort it in descending order.Examples:Input : alkasinghOutput : snlkihgaa Input : nupursinghOutput : uusrpnnihg Input : geeksforgeeksOutput : ssrokkggfeeee ...read more

Remove duplicates from a given string

Last updated: 20 September 2023

Given a string S which may contain lowercase and uppercase characters. The task is to remove all duplicate characters from the string and find the resultant string. Note: ...read more

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