Given an array X of n integers, return true if and only if it is a valid mountain array. The array X is a mountain array if and only if n >= 3 and there exists some i with 0 < i < n — 1 such that:
In other words, we call the array mountain array when the array is strictly increasing and then strictly decreasing.
Input: X = [5, 2, 1, 4]
Output: falseInput: X = [5, 8, 8]
Algorithmic Thinking has recently become a buzzword among programmers. It is a method for solving problems based on a clear definition of the steps: logically and repeatedly. The best idea would be to develop this skill independently from learning programming, where proper visualisation can help us understand several efficient problem-solving approaches.
The data structure and algorithm provide a set of approaches to the programmer for handling the data efficiently. If the programmer does not know about data structure and algorithm, they may not write efficient and correct code for their software. It is a fundamental building block of computer science and critical for career success. Let’s understand its importance from two different points of view —
Career point of view — The data structure and algorithm can be used to test both freshers and professionals in the tech industry. …
Facebook, Amazon, Uber, Bloomberg, Linkedin, Paytm
Given an array X of n elements filled with several integers, some of them being zeroes, write a program to…
Let’s discuss something important: how to prepare a learning strategy to achieve interview success? Here is a step-by-step guided strategy:
The first step would be to develop a long term desire to achieve the target. We should think — why I want to accomplish this? How will it change life in the long run?
Suppose we have 6 months’ available duration with a commitment of 5 hours/daily. Then the total time = 30 x 6 x 5 = 900 Hours. Let’s do the round-off and say, we have 1000 preparation hours in 6 months. Similarly, we have 2000 preparation hours…
Most programmers need to realize the importance of data structure and algorithms as early as possible in their careers. The knowledge of this subject helps us grow as better programmers with problem-solving in computer science. We should never develop a belief to consider this merely a subject because it is much more than that! Think.
Why tech companies test the knowledge of Data structure and algorithm during the interview process? The answer is obvious — these companies encounter problems daily that are complex and large on the scale of data, and they would like to hire a smart programmer who…
Microsoft, Amazon, Goldman Sachs, Qualcomm, Bloomberg, Paytm
Merge sort is a popular sorting algorithm that uses a divide and conquer approach to sort an array (or list) of integers (or characters or strings). Here are some excellent reasons to learn this algorithm -
Computer science is a field of dream opportunities. All over the world, millions of students are looking forward to pursuing a career in the field of computer science. Though a lot of learning resources are available online, still, most of the students are struggling to become good at it and crack the interview. After working closely with more than 1k students, here I would like to highlight the top 5 learning challenges in computer science.
Solving problems is a practical skill like, let us say, swimming. We acquire any practical skill by imitation and practice. — George Polya