hardArrayDynamic Programming 0 views

Minimum Difficulty of a Job Schedule

You want to schedule a list of jobs in d days.

You want to schedule a list of jobs in d days. Jobs are dependent (i.e To work on the ith job, you have to finish all the jobs j where 0 <= j < i).

You have to finish at least one task every day. The difficulty of a job schedule is the sum of difficulties of each day of the d days. The difficulty of a day is the maximum difficulty of a job done on that day.

You are given an integer array jobDifficulty and an integer d. The difficulty of the ith job is jobDifficulty[i].

Return the minimum difficulty of a job schedule. If you cannot find a schedule for the jobs return -1.

Minimum Difficulty of a Job Schedule diagram

Example 1

Input: jobDifficulty = [6,5,4,3,2,1], d = 2

Output: 7

Explanation: First day you can finish the first 5 jobs, total difficulty = 6. Second day you can finish the last job, total difficulty = 1. The difficulty of the schedule = 6 + 1 = 7

Example 2

Input: jobDifficulty = [9,9,9], d = 4

Output: -1

Explanation: If you finish a job per day you will still have a free day. you cannot find a schedule for the given jobs.

Example 3

Input: jobDifficulty = [1,1,1], d = 3

Output: 3

Explanation: The schedule is one job per day. total difficulty will be 3.

Constraints

  • 1 <= jobDifficulty.length <= 300
  • 0 <= jobDifficulty[i] <= 1000
  • 1 <= d <= 10

Hints

Companies

No companies reported yet.

Discussion

Sign in to join the discussion.

Loading discussion...

Test results

No test cases yet.