Sorting With DP Followups | Dataford Interview Questions

Sorting algorithm question with dp followups

Implement a function that receives weighted intervals, sorts them by ending time, and returns the maximum total value from a set of non-overlapping intervals. Intervals may touch, so an interval ending at time t is compatible with one starting at t. Use dynamic programming after sorting to answer the follow-up efficiently.

Function contract: intervals is a list of [start, end, value] records. Return an integer maximum value. An empty selection is allowed, so the result is never negative.

Constraints

1 <= len(intervals) <= 200
Each interval has exactly three integers: [start, end, value]
0 <= start < end <= 10^9
-10^6 <= value <= 10^6
Intervals may share start or end times

Function Signature

def max_interval_value(intervals):

Whenever you're ready, walk me through your approach or go straight to the code. The requirements are in the Question tab.

Problem

Sorting algorithm question with dp followups

Function contract: intervals is a list of [start, end, value] records. Return an integer maximum value. An empty selection is allowed, so the result is never negative.

Constraints

1 <= len(intervals) <= 200
Each interval has exactly three integers: [start, end, value]
0 <= start < end <= 10^9
-10^6 <= value <= 10^6
Intervals may share start or end times

Function Signature

def max_interval_value(intervals):

Whenever you're ready, walk me through your approach or go straight to the code. The requirements are in the Question tab.