class Solution(object):
def minimumTotal(self, triangle):
"""
:type triangle: List[List[int]]
:rtype: int
"""
if len(triangle) == 1:
return triangle[0][0]
for row in range(len(triangle)-2,-1,-1):
for col in range(len(triangle[row])):
triangle[row][col] += min(triangle[row+1][col], triangle[row+1][col+1])
return triangle[0][0]
https://leetcode.com/problems/triangle/#/description
Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below.
For example, given the following triangle
[
[2],
[3,4],
[6,5,7],
[4,1,8,3]
]
The minimum path sum from top to bottom is 11 (i.e., 2 + 3 + 5 + 1 = 11
).