## How do you know if 2 numbers are anagrams?

Approach: Create two arrays freqA[] and freqB[] where freqA[i] and freqB[i] will store the frequency of digit i in a and b respectively….Now traverse the frequency arrays and for any digit i if freqA[i] != freqB[i] then the numbers are not anagrams of each other else they are.

1. C++
2. Java.
3. Python3.
4. C#
5. Javascript.

## How do you find an anagram number?

Approach used in the below program is as follows For each substring if count is x for anagrams. Then total anagram pairs will be x*(x-1)/2. Take string str[] as a character array. Function anagram_substring(string str, int length) takes the string and returns the count of total anagram substrings.

## How do you check if two strings are anagrams of each other in C?

The program output is also shown below.

1. * C Program to Check whether two Strings are Anagrams.
2. int find_anagram(char [], char []);
3. char array1, array2;
4. int flag;
5. printf(“Enter the string/n”);
6. gets(array1);
7. printf(“Enter another string/n”);
8. gets(array2);

## How do you check if two strings are anagrams of each other Python?

Here is source code of the Python Program to detect if two strings are anagrams. The program output is also shown below. s1=raw_input(“Enter first string:”) s2=raw_input(“Enter second string:”) if(sorted(s1)==sorted(s2)): print(“The strings are anagrams.”) else: print(“The strings aren’t anagrams.”)

## Is Hackerrank an anagram?

Two words are anagrams of one another if their letters can be rearranged to form the other word. Given a string, split it into two contiguous substrings of equal length. Determine the minimum number of characters to change to make the two substrings into anagrams of one another. Break into two parts: ‘abc’ and ‘cde’.

## How do you sort a string?

Method 1(natural sorting) :

1. Apply toCharArray() method on input string to create a char array for input string.
2. Use Arrays. sort(char c[]) method to sort char array.
3. Use String class constructor to create a sorted string from char array.

## Can we sort a string in Python?

Python sorted() Function You can specify ascending or descending order. Strings are sorted alphabetically, and numbers are sorted numerically. Note: You cannot sort a list that contains BOTH string values AND numeric values.

## How do you sort an ArrayList?

An ArrayList can be sorted by using the sort() method of the Collections class in Java….Collections. sort() Method

1. //creating an instance of ArrayList that contains String type elements.
2. ArrayList list = new ArrayList();
5. list. add(“Hard Disk”);

## How do you sort a string in descending order?

The simplest way would be std::sort it, then std::reverse it. sort is from algorithm. reverse is from utility. There is a function in C++ to sort a string, and you can make it sort it descending order by telling it to compare with std::greater rather than std::less .

## How do you sort an ArrayList in descending order?

Approach: An ArrayList can be Sorted by using the sort() method of the Collections Class in Java. This sort() method takes the collection to be sorted and Collections. reverseOrder() as the parameter and returns a Collection sorted in the Descending Order.

## How do you sort a vector in descending order?

Use std::sort (or std::stable_sort ) To get a stable sort, go with std::stable_sort , which uses the mergesort algorithm. The two-arg version of the std::sort algorithm sorts the vector in ascending order using operator< . To get the descending order, make a call to std::reverse after std::sort .

## How do I sort a string in STL?

5 Answers. You can sort the string using std::string class.

## What algorithm does STD sort use?

The std::sort is a sorting function that uses the Introsort algorithm and have the complexity of O(N log(N)) where N= std::distance(first, last) since C++11 and the order of equal elements is not guaranteed to be preserved.

## How do you sort a string by function?

Program to sort a string in alphabetical order by swapping the characters in the string

1. /* C Program to sort a string in alphabetical order */
2. #include
3. #include <string.h>
4. int main ()
5. {
6. char string;
7. printf(“/n/t Enter the string : “);

## Can we sort a string in C++?

There is a sorting algorithm in the standard library, in the header . It sorts inplace, so if you do the following, your original word will become sorted. std::sort(word. begin(), word.

## Can we sort a string array?

Using User Defined Logic. We can sort a string array by comparing each element with the rest elements. compareTo(countries[j])>0) is true than 0, it performs the swapping and sorts the array.

## How do you group anagrams together?

The idea is to sort each word on the list and construct a map where the map’s key is each sorted word, and the map’s value is a list of indices in the array where it is present. After creating the map, traverse the map and get indices for each sorted key. The anagrams are present in the actual list at those indices.

## How do I remove duplicate characters in a string?

Algorithm:

1. Sort the elements.
2. Now in a loop, remove duplicates by comparing the current character with previous character.
3. Remove extra characters at the end of the resultant string.

## How do I find duplicate characters in a string?

How do you find duplicate characters in a string?

1. import java.util.HashMap;
2. import java.util.Map;
3. import java.util.Set;
4. public class DuplicateCharFinder {
5. public void findIt(String str) {
6. Map<Character, Integer> baseMap = new HashMap<Character, Integer>();
7. char[] charArray = str.toCharArray();

## How do I remove duplicate characters in a string in python?

Write a Python program to remove duplicate characters of a given string.

1. Sample Solution:-
2. Python Code: from collections import OrderedDict def remove_duplicate(str1): return “”.join(OrderedDict.fromkeys(str1)) print(remove_duplicate(“python exercises practice solution”)) print(remove_duplicate(“w3resource”))

## How do you remove duplicate characters from a string in C++?

std::set to hold the set of characters already encountered. std::remove_if with a lambda function to reorganize the string so the duplicates are at the end. std::string::erase to remove the duplicates.

## How do I remove a character from a string?

How to remove a particular character from a string ?

1. public class RemoveChar {
2. public static void main(String[] args) {
3. String str = “India is my country”;
4. System.out.println(charRemoveAt(str, 7));
5. }
6. public static String charRemoveAt(String str, int p) {
7. return str.substring(0, p) + str.substring(p + 1);
8. }

## How do you reverse a string test?

The easiest way to reverse a string in Java is to use the built-in reverse() function of the StringBuilder class.

## How do you remove duplicates from an array?

Java Program to remove duplicate element in an Array

1. public class RemoveDuplicateInArrayExample{
2. public static int removeDuplicateElements(int arr[], int n){
3. if (n==0 || n==1){
4. return n;
5. }
6. int[] temp = new int[n];
7. int j = 0;
8. for (int i=0; i

## How can you remove duplicates in an array in C?

Algorithm to remove duplicate elements in an array (sorted array)

1. Input the number of elements of the array.
2. Input the array elements.
3. Repeat from i = 1 to n.
4. – if (arr[i] != arr[i+1])
5. – temp[j++] = arr[i]
6. – temp[j++] = arr[n-1]
7. Repeat from i = 1 to j.
8. – arr[i] = temp[i]

## How do you find duplicates in an array?

Algorithm

1. Declare and initialize an array.
2. Duplicate elements can be found using two loops. The outer loop will iterate through the array from 0 to length of the array. The outer loop will select an element.
3. If a match is found which means the duplicate element is found then, display the element.

## Can we add duplicate values in ArrayList?

4) Duplicates: ArrayList allows duplicate elements but HashMap doesn’t allow duplicate keys (It does allow duplicate values).

## Can we add duplicates in list?

In order to find duplicates we can utilize the property of Set in Java that in Java duplicates are not allowed when going to be added in a Set.

## Which is better HashMap or ArrayList?

HashMap allows duplicate values but does not allow duplicate keys. The ArrayList always gives O(1) performance in best case or worst-case time complexity. The HashMap get() method has O(1) time complexity in the best case and O(n) time complexity in worst case. ArrayList has any number of null elements.

## Does Set allow duplicates?

A Set is a Collection that cannot contain duplicate elements. It models the mathematical set abstraction. The Set interface contains only methods inherited from Collection and adds the restriction that duplicate elements are prohibited. Two Set instances are equal if they contain the same elements.