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  1. Prepare
  2. Python
  3. Regex and Parsing
  4. Matrix Script
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Matrix Script

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569 Discussions

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  • eaaf123
     + 0 comments

    print(re.sub("(?<=\w)(\W+)(?=\w)"," ","".join([matrix[j][i] for i in range(m) for j in range(n)])))

  • rejin_gunasekar1
     + 0 comments
    import re
first_multiple_input = input().rstrip().split()
n = int(first_multiple_input[0])
m = int(first_multiple_input[1])
matrix = []
for _ in range(n):
    matrix_item = input()
    matrix.append(matrix_item)
s = ''.join(matrix[y][x] for x in range(m) for y in range(n))
p = r'(?<=[a-zA-Z0-9])[!@#$%&\s]+(?=[a-zA-Z0-9])'
print(re.sub(p, ' ', s))

  • burgesslouis
     + 0 comments

    matrix = [list(i) for i in zip(*matrix)] matrix = sum(matrix, []) string = "".join(matrix)

    pattern = "[A-Za-z0-9][^A-Za-z0-9]+[A-Za-z0-9]"

    betweens = re.findall(pattern, string) for substr in betweens: string = string.replace(substr[1:-1], ' ', 1)

    print(string)

  • blaskobenjamin
     + 0 comments
    import re

first_multiple_input = input().rstrip().split()

n = int(first_multiple_input[0])

m = int(first_multiple_input[1])

matrix = []

for _ in range(n):
    matrix_item = input()
    matrix.append(matrix_item)
decode = list(zip(*matrix))
decode_string = "".join(map(lambda string: "".join(string), decode))

pattern = re.compile(r"((?<=\w)([!@#$%&\s]+)(?=\w))|\s\s")
neo = re.sub(pattern, " ", decode_string)
print(neo)

  • lautterm
     + 0 comments

    this is my code, I replace positive lookbehind and positivei lookahead condition into \b meta string. 

    import math
import os
import random
import re
import sys



N, M = map(int, input().split())

matrix = []

for _ in range(N):
    matrix_item = input()
    matrix.append(matrix_item)

string = ''.join(matrix)
decode = '' 

for i in range(M):
    for index in range(i, len(string), M):
        decode += string[index]
        
decode = re.sub('\\b\W+\\b', ' ', decode)
print(decode)