If you are in the preparation of Interviews, you have come to the right place. My team and I have been interviewing for the last several years. We have studied all this information ourselves.

#### Reverse a linked list | Practice | GeeksforGeeks

Given a linked list of N nodes. The task is to reverse this list. Example 1: Input: LinkedList: 1->2->3->4->5->6 Output: ...

#### Roman Number to Integer | Practice | GeeksforGeeks

Given a string in roman no format (s)  your task is to convert it to an integer . Various symbols and their ...

#### Leaders in an array | Practice | GeeksforGeeks

Given an array A of positive integers. Your task is to find the leaders in the array. An element of array ...

#### Roman Number to Integer | Practice | GeeksforGeeks

Given a string in roman no format (s)  your task is to convert it to an integer . Various symbols and their ...

#### Reverse a Linked List in groups of given size. | Practice | GeeksforGeeks

Given a linked list of size N. The task is to reverse every k nodes (where k is an input ...

#### Subarray with given sum | Practice | GeeksforGeeks

Given an unsorted array A of size N that contains only non-negative integers, find a continuous sub-array which adds to a ...

#### Missing number in array | Practice | GeeksforGeeks

Given an array of size N-1 such that it can only contain distinct integers in the range of 1 to N. Find the missing ...

#### Sort an array of 0s, 1s and 2s | Practice | GeeksforGeeks

Given an array of size N containing only 0s, 1s, and 2s; sort the array in ascending order. Example 1: ...

#### Reverse array in groups | Practice | GeeksforGeeks

Given an array arr[] of positive integers of size N. Reverse every sub-array group of size K.   Example 1: ...

#### Stock buy and sell | Practice | GeeksforGeeks

The cost of stock on each day is given in an array A[] of size N. Find all the days ...