Dynamic Programming 면접 질문과 답변
Ques 1. Fibonacci Series
The Fibonacci sequence is a series of numbers where each number is the sum of the two preceding ones.
Example:
Fib(0) = 0, Fib(1) = 1, Fib(n) = Fib(n-1) + Fib(n-2)
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Ques 2. Longest Increasing Subsequence (LIS)
Find the length of the longest subsequence of a given sequence such that all elements of the subsequence are sorted in increasing order.
Example:
Input: [10, 22, 9, 33, 21, 50, 41, 60, 80], Output: 6
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Ques 3. Coin Change Problem
Given a set of coin denominations, find the number of ways to make a certain amount of change.
Example:
Input: coins=[1, 2, 5], amount=5, Output: 4
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Ques 4. Edit Distance
Given two strings, find the minimum number of operations required to convert one string into the other.
Example:
Input: word1 = "horse", word2 = "ros", Output: 3
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Ques 5. Maximum Subarray Sum
Find the contiguous subarray with the largest sum.
Example:
Input: [-2, 1, -3, 4, -1, 2, 1, -5, 4], Output: 6 (subarray [4, -1, 2, 1])
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