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Tag Archives: cpp-pair

Given k sorted arrays of possibly different sizes, merge them and print the sorted output.Examples:  Input: k = 3 arr[][] = { {1, 3}, {2,… Read More
Least Frequently Used (LFU) is a caching algorithm in which the least frequently used cache block is removed whenever the cache is overflowed. In LFU… Read More
Given two arrays arr1[] and arr2[] sorted in ascending order and an integer K. The task is to find k pairs with the smallest sums… Read More
Given a sequence of N elements, only three operations can be performed on any element at most one time. The operations are:  Add one to… Read More
Given K arrays of different size. The task is to check if there exist any two arrays which have the same sum of elements after… Read More
Given N numbers that have a permutation of first N numbers. In a single operation, any prefix can be reversed. The task is to find… Read More
How to apply STL binary_search to vector of pairs(key, value), given that vector is sorted by its first value(key) struct compare in the code contains… Read More
Given a set S (all distinct elements) of integers, find the largest d such that a + b + c = d where a, b, c,… Read More
Given an array of size N with repeated numbers, You Have to Find the top three repeated numbers.  Note : If Number comes same number… Read More
Given an array of N distinct element of at least size 2. A pair (a, b) in an array is defined as ‘a’ is the… Read More
We are given two arrays. We need to sort one array according to another. Examples: Input : 2 1 5 4 9 3 6 7… Read More
Operator overloading is one of the features of Object oriented programming which gives an extra ability to an operator to act on a User-defined operand(Objects).… Read More
Map in STL is used to hash key and value. We generally see map being used for standard data types. We can also use map… Read More
Given an array of integers, sort the array according to frequency of elements. If frequencies of two elements are same, print them in increasing order.… Read More

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