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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: ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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: ...
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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: ...
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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 ...
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