Leetcode84. Largest Rectangle in Histogram

阿新 • • 發佈：2019-01-12

沒通過測試有個一個0-20000的例子timeout
思路 : 雙層迴圈處理[i , j]之間的值, 其中儲存height在[i,j]最小值, 因為短板效應,最小的值決定水的高度

class Solution:
    def largestRectangleArea(self, heights):
        waters = 0
        res = 0
        if heights is None:
            return 0 
        if len(heights) == 1:
            return heights[0]
        for i in range(len(heights)):
            min_value = heights[i]
            waters = heights[i]
            for j in range(i, len(heights)):
                if i == j:
                    res = max(waters, res)
                else:
                    min_value = min(min_value, heights[j])
                    waters = min_value *(j-i+1)
                    res = max(waters, res)
        return res

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