Function to find the mid point of the linked list

create function for load vocab from number base on index

Function to print the linked list

Function to push elements into the linked list

Funtion to remove dupliocates in an array

we are making a finction to reverse the given string

Function to rotate the matrix by 90 degrees

this function shifts the position of an existing list or string and returns it as a new list

Here, in this method, we will solve this problem using a odd and even pattern. And, we will check if the given x,y points lies on line x=y or x-y=2 *

this is a classic dp problem, very similar to the knapsack problem. the DP's state will be the current column, row, how many numbers we picked in the

The main clue of this question is the equation (n*(n-1))/2 -1. When we sort an array by swapping elements, the Worst case happens when the array is s

The following function explains the inorder traversal of a Binary Tree , i.e. leftchild--node--right child :being its basic form.

Recursive function for the solution

Given below is th solve function

this is the alghorithm to calculate the permutation since it's said that it wants only the one starts with 1 so we just need to calculate

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Complete the staircase function below.

the formula it's self if tn = n^2 - (n-1)^2 sn = t1+ t2 + ... + tn but if we look it closely we can make a shortcut by just returnin

Recursively find sum of digits till the number is single digit

method to swap ith character with jth character inside charArray @param charArray @param i @param j