Print squares of diagonal elements in O(n) time complexity Input: 1 2 3 4 5 6 7 8 9 Output:…
Find the length of unsorted subarray such that sorting this subarray can sort all the array. Print the start and…
Given a stack containing n elements reverse the stack with the help of an empty stack.
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 |
import java.util.Stack; public class StackReversal { public static void reverseStack(Stack<Integer> stack) { if (stack.empty()) return; int temp = stack.pop(); reverseStack(stack); // popping the elemnt of stack insertAtBottom(stack, temp); } public static void print(Stack<Integer> stack) { for (int i = 0; i < stack.size(); i++) { System.out.print(stack.get(i) + " "); } } public static void insertAtBottom(Stack<Integer> stack, int data) { if (stack.isEmpty()) { stack.push(data); return; } int temp = stack.pop(); insertAtBottom(stack, data); stack.push(temp); } public static void main(String args[]) { Stack<Integer> stack = new Stack(); stack.push(1); stack.push(2); stack.push(3); stack.push(4); stack.push(5); reverseStack(stack); print(stack); // printing the element } } |
Love this post?…
In this tutorial, we will be building step by step Javascript Application that connects to Google Firebase and performs the…
In this post, we will learn about map a collection of basic type using Hibernate @ElementCollection and @CollectionTable annotation. Learn…
Hello everyone, welcome back to my blog. This is the part-2 of the Highcharts and Spring boot series, where we…
In this article, you will learn how to Create Spring MVC and Hibernate Web application with One-to-One mapping. And also…
Hello guys, Bushan here welcomes back to B2 Tech. Today in this article will discuss Charts. To draw charts so…
Hello guys, Bushan here welcomes back to B2 Tech. Today in this post, we will be creating a Recipe App…
Hello guys, Bushan here, welcome to B2 Tech. In this article, we will be Creating fully fledged MVC database web…