Best Time To Buy And Sell Stock LeetCode | Count And Say LeetCode | Solved Using C++ | Intellipaat
41#LeetCodeProblems #BestTimetoBuyAndSellStocks #CountAndSay #Intellipaat
In this video, we'll cover two popular LeetCode problems, "Best Time to Buy and Sell Stock" and "Count and Say," using C++.
First, we will look into Best Time to Buy and Sell Stock in which we will Learn how to maximize your profits by efficiently
buying and selling stocks. We'll break down the problem, provide a step-by-step C++ solution, and explain the logic behind it.
Then we will look into the Count and Say problem which will cover how to construct the ""Count and Say"" sequence
and Implement using a C++ solution.
🔵 Following topics are covered in this session:
00:00 -Introduction
01:13 - The best time to Buy and Sell Stocks Problem
01:45 - Methods to Solve Best Time to Buy and Sell Stocks Problem
7:21 - Solution Using C++
16:34 - Count and Say Problem Explanation
18:16 - How to Solve Count and Say Problem?
19:57 - Implementing Solution using C++
What is the "best time to buy and sell stocks"?
The ""Best Time to Buy and Sell Stock"" problem on LeetCode is a classic algorithmic problem that challenges you to find the maximum profit that can be achieved by buying and selling a single stock at the right times.
What is the count and say algorithm?
The ""Count and Say"" algorithm is a sequence where each term is generated by "counting and saying"" the previous term. It starts with "1" and proceeds as follows: "1" is read as "one 1," so the next term is "11." "11" is read as "two 1s," so the next term is "21." This process continues to generate subsequent terms in a unique way.
what is an approach for the count and say problem?
we will solve this problem using recursion.
Base Case: If n is 1, return "1."
Recursive Case:
a. Make a recursive call with n - 1 to obtain the (n-1)th term.
b. Process and construct the nth term by iterating through the digits of the (n-1)th term and applying the ""count and say"" logic.
c. Return the constructed nth term.
This approach allows us to generate the nth term of the ""Count and Say"" sequence using recursion in C++.
What do you mean by recursion?
Recursion means ""defining a problem in terms of itself"". This can be a very powerful tool in writing algorithms. Recursion comes directly from Mathematics, where there are many examples of expressions written in terms of themselves. For example, the Fibonacci sequence is defined as F(i) = F(i-1) + F(i-2).
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