Given a positive number N, and a digit X, the task is to find the largest possible number by deleting one occurrence of X from… Read More

# Category Archives: Mathematical

Given an integer N, the task is to find the minimum number of divisions required to reduce the number to 1 when the divisions follow… Read More

Given integer N and K, denoting the number of teams participating in a football tournament where each team plays only one match with each other… Read More

Given two arrays A[] and B[] (B[i] < A[i]) of size N each and an integer K, the task is to perform the operation of… Read More

For a given matrix before[][], the corresponding cell (x, y) of the after[][] matrix is calculated as follows: res = 0;for(i = 0; i <=… Read More

Prerequisite: What is Z-transform? A z-Transform is important for analyzing discrete signals and systems. In this article, we will see the properties of z-Transforms. These… Read More

Given an integer M and a sorted integer array arr[] of length N containing 1 and N-1 prime numbers, each appearing just once, the task… Read More

Given an array arr[] of size N, the task is to calculate the minimum number of elements to be removed from the array such that… Read More

Given an integer array having N elements ranging from 1 to N and each element appearing exactly once. The task is to find the number… Read More

Given an array arr[] of size N and three integers X, Y and K, the task is to count the number of pairs (i, j)… Read More

Given an array arr[] of positive integers of size N, the task is to divide the array into two non-empty subsets X and Y in… Read More

Given two integers N and X, the task is to find an output array arr[] containing distinct integers of length N such that their average… Read More

Find the number of leaf nodes in a perfect N-ary tree of height K. Note: As the answer can be very large, return the answer… Read More

Given two integers N and X, the task is to convert 1 to N using minimum operations of any of the following operations: Change a… Read More

Given an integer N, the task is to find two pairs of positive integers such that the GCD of the first pair is the same… Read More