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Given an array key of size n, instruction count representing the number of keys a hijacker can test per second, during a total validity period which is the average time to...read more

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Given a list of prices for n products, find the minimum amount a customer needs to spend to obtain a gift card. A gift card is awarded when a customer purchases a contiguo...read more

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Given a stock's prices for the past n days in the array stockPrice. Choose a subsequence (an ordered subset of an array's elements) of stock prices, called chosenDays, suc...read more

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Given an array a[] of size n and integer k. The task is to count a number of different pairs of indexes where values at a given index are the same and both indexes are at ...read more

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Given an array A[] of size N. The task is to check whether the sum of elements of A on the odd and even indexes is equal or not, where you are allowed to choose a subarray...read more

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Given array A[] of size N, each element represents 2A[i] for all i from 1 to N. The Task for this problem is to find the number of Strong pairs. A Strong pair is defined ...read more

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cpp-unordered_map

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In C++, the unordered_map is like a dictionary that stores data in the form of key-value pairs. In this article, we will learn how to delete a key-value pair from an unord...read more

cpp-unordered_map

A mode is a number that occurs most frequently in comparison to other numbers in a given dataset. In this article, we will find the mode in a 2D array of integers in C++.I...read more

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In C++, STL provides the pair container which allows the user to store two objects that can be of the same or different type as a single unit. On the other hand, the Unord...read more

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Mode of any dataset is the item that occurs most frequently in it. In this article, we will find the mode of numbers in an unsorted array in C++.For Example,Input:myArray ...read more

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In C++, arrays are a type of data structure that can store a fixed-size sequential collection of elements of the same type. In this article, we will learn how to find the ...read more

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In C++, a stack is a container adapter that provides a Last-In-First-Out (LIFO) type of data structure, and an unordered set is a container that stores unique elements in ...read more

cpp-unordered_map

In C++, the stack is a container that follows the LIFO(Last In First Out) rule where new elements are added from one end (top) and removed from that end only. An unordered...read more

cpp-unordered_map

In C++ std::unordered_mapis a data structure that implements a hash table and allows fast access to each element based on its key. However, when we want to use user-define...read more

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A HashMap is a data structure in which the elements are stored in key-value pairs such that every key is mapped to a value using a hash function. In C++, hash maps are imp...read more

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