In the dynamic programming approach to the coin change problem, what does the dp
Practice Questions
Q1
In the dynamic programming approach to the coin change problem, what does the dp array represent?
Number of coins used
Minimum number of coins for each amount
Total value of coins
Maximum number of coins
Questions & Step-by-Step Solutions
In the dynamic programming approach to the coin change problem, what does the dp array represent?
Step 1: Understand the coin change problem. It involves finding the minimum number of coins needed to make a specific amount of money using given coin denominations.
Step 2: The dp array is a list where each index represents a specific amount of money, starting from 0 up to the target amount.
Step 3: Each value in the dp array at index 'i' indicates the minimum number of coins required to make the amount 'i'.
Step 4: Initialize the dp array with a size of (target amount + 1) and set the value at index 0 to 0 (because no coins are needed to make 0 amount).
Step 5: For all other amounts, initialize the dp values to a large number (like infinity) to represent that those amounts are initially unreachable.
Step 6: As you iterate through each coin and each amount, update the dp array to reflect the minimum coins needed for each amount based on the coins available.
