Leetcode6:zigzag Conversion@python

The string is "PAYPALISHIRING" written with 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   NA p L S i i GY   i   R

And then read on line:"PAHNAPLSIIGYIR"

Write the code that would take a string and make this conversion given a number of rows:

String convert (string text, int nRows);

convert("PAYPALISHIRING", 3)should return "PAHNAPLSIIGYIR" .

First understand the test instructions, give a string, according to the glyph (Zigzag) arranged into a rectangle, each line of the matrix is joined together to form a string.

Compress the matrix to get:

1 #-*-coding:utf-8-*-2 3 classsolution (object):4     defconvert (self, S, numrows):5         """6 : Type S:str7 : Type Numrows:int8 : Rtype:str9         """Ten         ifNumRows = = 1: One             returns AZigzag = ["'  forIinchRange (NumRows)]#initialize zigzag to [', ', ', '] -Row = 0#Current number of columns -Step = 1#number of steps: Control Data input the          forCinchS: -             ifrow = =0: -Step = 1 -             ifrow = = NumRows-1: +Step =-1 -Zigzag[row] + =C +Row + =Step A         return "'. Join (Zigzag)

Leetcode6:zigzag [email protected]