Here is the Java code to find the shortest concatenation of elements of Array wordBank to construct String Terget, using Dynamic Programming. Example: Input: wordBank = {“ab”, “c”, “d”, “abc”, “ad”}, Target = “abcd”. Output: {“abc&#…
Tag: dynamic-programming
Maximum number of tasks to be performed
I’m stucking in a problem. I know dp can be applied here, but not getting it. Consider a part of the positive number line starting at 0 and ending at 10^9. You start at 0 and there are N tasks can be performed. The ith task is at l[i] and requires t[i] time to be performed. To perform ith task,
dp[!t][val] for skipping the parts from array
consider the following snippet in cpp. This is taken from dynamic programming tutorial . It is mainly for space optimized knapsack problem. This snippet is taken from this tutorial. I want to convert this technique into java. But java does not support this type of integer manipulation. Please can anyone expla…
Fibonacci Memoized/Dynamic Programming in Java
So this is some code to calculate the Fibonacci sequence with memoization. What confuses me is when we check if memo[i]==0. I understand that Java arrays are initialized to zero and thus if memo[i] == 0 this may mean that the computation for memo[i] has not yet occured. However, one of the return values for t…
Count total subsequences whose sum is divisible by k
I am trying to write a DP solution for the problem: count total number of sub-sequences possible of an array whose elements’ sum is divisible by k. I have written the following solution. But it is not giving the correct result. Like in the following code snippet, the array is {1, 2, 1} and k = 3. So exp…