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cpp-unordered_map

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Check if encrypted information remains confidential during its Validity Period

Last Updated: 09 November 2023

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

Minimum cost for gift card eligibility from Contiguous Subsegments

Last Updated: 15 December 2023

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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Maximum Balanced Subsequence Score

Last Updated: 23 July 2024

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

Python dictionary-programs

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Count same Value Pairs with Minimum Separation

Last Updated: 26 February 2024

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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Balancing Odd-Even Index Sums with Subarray Negation

Last Updated: 09 January 2024

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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Count Strong Pairs

Last Updated: 16 January 2024

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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valid pairs

How to Delete a Pair from an Unordered Map in C++?

Last Updated: 06 February 2024

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

How to Find the Mode in a 2D Array in C++?

Last Updated: 08 February 2024

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

How to Insert a Pair into an Unordered Map in C++?

Last Updated: 13 February 2024

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

How to Find the Mode of Numbers in an Array in C++?

Last Updated: 14 February 2024

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

C++ Program to Find the Frequency of Elements in an Array

Last Updated: 20 March 2024

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

How to Create Stack of Unordered Set in C++?

Last Updated: 04 March 2024

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

How to Create a Stack of Unordered_Map in C++?

Last Updated: 18 March 2024

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

How to Implement Custom Hash Functions for User-Defined Types in std::unordered_map?

Last Updated: 28 April 2024

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

How to Use HashMap in C++?

Last Updated: 28 May 2024

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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