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Problem C. Minimum Path in Triangle
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The tasks in this section contain test function calls. Please do not change this code; otherwise, the assignment may not be accepted.
Given a triangle array. The bird starts at the top, and for each step, it can move either left or right down (if it is on the index j at the current row, it can move to j or j+1 position on the next row). Return the minimum path cost among all possible paths from top to bottom.
Example 1
The orange path is minimum and costs 12.
Example 2
Input: triangle = [[1],
[2, 1],
[8, 3, 7],
[5, 2, 6, 1]]
Output: 7
Explanation: The path looks like:
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Implement a function minPath() for triangle array.
- Find the rule for shortest path in
triangle[i][j]. - Define the rule for corner cases.
Solution
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