mediumArrayGraphHeap Priority QueueShortest Path 0 views

Minimum Cost of a Path With Special Roads

You are given an array start where start = [startX, startY] represents your initial position (startX, startY) in a 2D space.

You are given an array start where start = [startX, startY] represents your initial position (startX, startY) in a 2D space. You are also given the array target where target = [targetX, targetY] represents your target position (targetX, targetY).

The cost of going from a position (x1, y1) to any other position in the space (x2, y2) is |x2 - x1| + |y2 - y1|.

There are also some special roads. You are given a 2D array specialRoads where specialRoads[i] = [x1i, y1i, x2i, y2i, costi] indicates that the ith special road goes in one direction from (x1i, y1i) to (x2i, y2i) with a cost equal to costi. You can use each special road any number of times.

Return the minimum cost required to go from (startX, startY) to (targetX, targetY).

Example 1

Input: start = [1,1], target = [4,5], specialRoads = [[1,2,3,3,2],[3,4,4,5,1]]

Output: 5

Explanation: So the total cost is 1 + 2 + 1 + 1 = 5.

Example 2

Input: start = [3,2], target = [5,7], specialRoads = [[5,7,3,2,1],[3,2,3,4,4],[3,3,5,5,5],[3,4,5,6,6]]

Output: 7

Explanation: It is optimal not to use any special edges and go directly from the starting to the ending position with a cost |5 - 3| + |7 - 2| = 7. Note that the specialRoads[0] is directed from (5,7) to (3,2).

Example 3

Input: start = [1,1], target = [10,4], specialRoads = [[4,2,1,1,3],[1,2,7,4,4],[10,3,6,1,2],[6,1,1,2,3]]

Output: 8

Constraints

  • start.length == target.length == 2
  • 1 <= startX <= targetX <= 10^5
  • 1 <= startY <= targetY <= 10^5
  • 1 <= specialRoads.length <= 200
  • specialRoads[i].length == 5
  • startX <= x1i, x2i <= targetX
  • startY <= y1i, y2i <= targetY
  • 1 <= costi <= 10^5

Hints

Companies

No companies reported yet.

Discussion

Sign in to join the discussion.

Loading discussion...

Test results

No test cases yet.