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Practice Programming
Practice Programming
DP – Coin Change: Find number of ways of representing n cents
Given an infinite supply of 25 cents, 10 cents, 5 cents, and 1 cent. Find the number of ways of representing n cents. (The...
Practice Programming
Rotate a matrix by 90 degrees in the clockwise direction
We are given an NxN matrix and we have to rotate it by 90 degrees in a clockwise direction without using any extra space.
Input:
10 11 12...
Practice Programming
Inorder Successor of a Node in Binary Search Tree
Given a pointer to a node of a Binary Search Tree(BST), we have to find the next node, which is the Inorder...
Practice Programming
Design an algorithm to create a linked list of all the nodes at each depth
Given a binary tree, we have to design an algorithm that will create a linked list of all the nodes at each...
Practice Programming
Insert M into N such that M starts at bit j and ends at bit i
Given two 32-bit numbers, Nand M, and two-bit positions, i and j. Write a method to insert Minto N such that M...
Practice Programming
Print all possible combinations of balanced valid parenthesis
We have to write an algorithm to print all possible combinations of the balanced valid parenthesis for n pairs of parenthesis. A...
Practice Programming
Print all unique permutations of a string with duplicate characters
A permutation is an act of rearranging or reordering elements of a set or string uniquely etc.For n elements, n! (n factorial) permutations are...
Practice Programming
Print all permutations of a string with unique characters
A permutation is an act of rearranging or reordering elements of a set or string etc.
For n elements, n! (n factorial) permutations are possible.
Ex->...
Practice Programming
Find all possible subset of a given set
Given a set (of n elements), Print all possible subset (2^n) of this set.
Example: Set = {a,b,c}, Power set of S, P(S) = {Φ,...
Practice Programming
Find if a path is possible for reaching bottom right from the top left in a nxm grid
A robot sitting on the upper left corner(0,0) of a grid with r rows and c columns.
The robot can only move in two directions:...
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