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题目描述：The string “PAYPALISHIRING” is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility)P…….A……..H…….N ..A..P….

Reverse digits of an integer.Example1: x = 123, return 321 Example2: x = -123, return -321Note: The input is assumed to be a 32-bit signed integer. Your function should return 0 when the reversed int