Package g0101_0200.s0120_triangle
Class Solution
- java.lang.Object
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- g0101_0200.s0120_triangle.Solution
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public class Solution extends Object
120 - Triangle.Medium
Given a
triangle
array, return the minimum path sum from top to bottom.For each step, you may move to an adjacent number of the row below. More formally, if you are on index
i
on the current row, you may move to either indexi
or indexi + 1
on the next row.Example 1:
Input: triangle = [[2],[3,4],[6,5,7],[4,1,8,3]]
Output: 11
Explanation:
The triangle looks like: 2 3 4 6 5 7 4 1 8 3 The minimum path sum from top to bottom is 2 + 3 + 5 + 1 = 11 (underlined above).
Example 2:
Input: triangle = [[-10]]
Output: -10
Constraints:
1 <= triangle.length <= 200
triangle[0].length == 1
triangle[i].length == triangle[i - 1].length + 1
-104 <= triangle[i][j] <= 104
Follow up: Could you do this using only
O(n)
extra space, wheren
is the total number of rows in the triangle?
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Constructor Summary
Constructors Constructor Description Solution()
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