Python strange questions list

• Z时代
• 2024-01-10
• 分类：综合

sys.setrecursionlimit(1<<64)

Line 3: OverflowError: Python int too large to convert to C long

max: 2**64-1, (1<<64) - 1

sys.setrecursionlimit(1<<31)

Line 3: OverflowError: signed integer is greater than maximum 

signed integer should be -1<<31 ~ (1<<31) - 1, -2**31 ~ 2**31

how to map list of list?

#not right
class Solution:
    # @param {character[][]} matrix
    # @return {integer}
    def maximalRectangle(self, matrix):
        print matrix,range(len(matrix)), range(len(matrix[0])),matrix[0][0]
        a=[]
        for i in range(len(matrix)):
            tmp = []
            for j in range(len(matrix[0])):
                tmp.append((i,j))
            a.append(tmp)
        print a
        matrix = map(lambda x: int(matrix[x[0]][x[1]]), a)#range(len(matrix)), range(len(matrix[0])))
        print matrix

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