Dynamic Programming Questions
The Maximum Sum of Subsequence with No Twenty-Eight Consecutive Elements problem is a dynamic programming problem that involves finding the maximum sum of a subsequence from a given sequence, with the constraint that no subsequence should contain twenty-eight consecutive elements.
To solve this problem using dynamic programming, we can use an array to store the maximum sum of subsequences up to a certain index. Let's assume the given sequence is stored in an array called "sequence" of size n.
We initialize two arrays, "dp" and "sum", both of size n. The "dp" array will store the maximum sum of subsequences up to a certain index, while the "sum" array will store the sum of the previous twenty-seven elements.
We start by initializing the first element of the "dp" array as the first element of the "sequence" array. Then, we iterate through the remaining elements of the "sequence" array.
For each element at index i, we update the "dp" array as follows:
- If the index i is less than 28, we set "dp[i]" as the maximum value between "sequence[i]" and "dp[i-1]".
- If the index i is greater than or equal to 28, we set "dp[i]" as the maximum value between "sequence[i] + sum[i-28]" and "dp[i-1]".
After updating the "dp" array, we update the "sum" array by shifting the values to the right and adding the current element at index i to the sum.
Finally, we return the maximum value in the "dp" array, which represents the maximum sum of a subsequence with no twenty-eight consecutive elements in the given sequence.
The time complexity of this dynamic programming solution is O(n), where n is the size of the given sequence.