In this problem, we are a 2d matrix and a point P(c, r). Our task is to print all elements of the matrix in a spiral form (anti-clockwise) that starts from a given point P.Let’s take an example to understand our problem, Input: matrix[][] = {{3, 5, 7} } Output:To ... Read More

In this problem, we are given a 2D array. Our task is to print all the elements of the array starting from the first row, from left to right, then right to left in the next row and again from left to right and so on.Let’s take an example to ... Read More

In this problem, we are given a matrix. Our task is to print the matrix in reverse waveform in a single line.This example will make the problem clear, Input:    1 4 6 11    2 5 8 54    7 9 3 43    1 7 4 34 Output: ... Read More

In this problem, we are given two numbers K and D. Our task is to print a number of k digits and which has digital root equal to D.Digital Root is a single-digit value which is the result of the recursive addition of the digits of the number till the ... Read More

In this problem, we are given a number n. Our task is to print the largest number less than n such that all its digits are distinct.Let’s take an example to understand the problemInput: n = 2332 Output: 2319To solve this problem, we reverse the count of the numbers i.e. ... Read More

In this problem, we are given a number n. Our task is to print patterns with decreasing to 0 or negative then increasing back to the number.Let’s take an example to understand the problem, Input: n = 12 Output: 12 7 2 -3 2 7 12To solve this problem, we ... Read More

In this problem, we are given a string and an integer n. Our task is to print the given string in a wave pattern of n lines.Let’s take an example to understand the problem, Input: Tutorial n = 3 Output: T             r    U ... Read More

In this problem, we are given a number. And we have to print all 3 digit repeating numbers.Let’s take an example to understand the problem, Input: 98769876598765 Output:    987: 3 times    876: 3 times    765: 2 timesTo solve this problem, we will use the large number which ... Read More

In this problem, we are given an integer n. Our task is to print all possible pairs of n balanced parentheses.Balanced parentheses are parentheses pairs that have a closing symbol for every corresponding opening symbol. Also, pairs should be properly nested.Let’s take an example to understand the problem, Input: n ... Read More

In this problem, we are given a number n. Our task is to print all combinations of factors of n.Let’s take an example to understand the topic better −Input: 24 Output: 2 2 2 3 2 4 3 8 3 4 6 2 12For this, we will use recursion function ... Read More