Cisco Software Development Engineer Test Interview Questions and Answers for Experienced

Leetcode medium related to linkedlists, graph and arrays

Q1. 1. Best Time to buy and sell stocks
Ans. 
The best time to buy and sell stocks is when the price is low and high respectively, maximizing profit.
• Buy when the stock price is low and sell when it is high to maximize profit

• Consider factors like market trends, company performance, and economic indicators

• Use technical analysis tools like moving averages, RSI, and MACD to make informed decisions
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Q2. 2. implement replace function of String class
Ans. 
Implement a replace function for the String class.
• Create a new string variable to store the result

• Iterate through the original string and check for the substring to be replaced

• Replace the substring with the new substring in the result string
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Q3. 3. Suggest a Data Structure that will help in scheduling football matches and makes sure each team has played with every other team.
Ans. 
Use a round-robin tournament scheduling algorithm with a matrix data structure.
• Create a matrix where rows represent teams and columns represent opponents.

• Fill in the matrix such that each team plays every other team exactly once.

• Use the round-robin tournament scheduling algorithm to generate the match schedule.

• Ensure that each team plays with every other team by checking the matrix for any missing matches.
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