How to add extra SSL certificates in Node JS server?

If node server is communicating with other Server & trusted certificate installed on the other server. Then Node Server could get certificate error like "Chain of trust issue". To over come this issue Trusted certificate also need to be added in the Node server.

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DSA problem solution: Climbing stairs

 

You are climbing a staircase. It takes n steps to reach the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top?

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Create a valid self signed certificate using openssl and deploy in apache tomcat

 

This article we are going to explain how to use openssl to create valid self signed certificate & deploy it on the tomcat server.

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DSA problem solution: Trapping Rain Water

Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it can trap after raining.

Example 1:

Input: height = [0,1,0,2,1,0,1,3,2,1,2,1]

Output: 6

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DSA Problem solution: Find Kth Largest Element in an Array using Heap in C#

Given an integer array nums and an integer k, return the kth largest element in the array.

Note that it is the kth largest element in the sorted order, not the kth distinct element.

Example 1:

Input: nums = [3,2,1,5,6,4], k = 2

Output: 5

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