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Matrix Script

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590 Discussions

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  • dbshoy
     + 0 comments

    I am confused about why this is not working. If anyone can help I'll apreceate.

    import math
import os
import random
import re
import sys

if __name__ == '__main__':
    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)

    text = ''
    for j in range(m):
        for i in range(n):
            if j < len(matrix[i]):
                text += matrix[i][j]
            else:
                text += ' '
    result = ''
    i = 0
    while i < len(text):
        if text[i].isalnum():
            result += text[i]
            i += 1
        elif text[i].isspace():
            result += text[i]
            i += 1
        else:
            next_alnum = i + 1
            while next_alnum < len(text) and not text[next_alnum].isalnum():
                next_alnum += 1
            
            if (i > 0 and text[i-1].isalnum() and 
                next_alnum < len(text) and text[next_alnum].isalnum()):
                result += ' '
                i = next_alnum
            else:
                result += text[i]
                i += 1
    if result.strip() and result.strip()[0] == '#':
        result = result.rstrip() + ' @'
    
    print(result)

  • some_random
     + 0 comments

    Here is a really simple but hopefully readable solution:

    #!/bin/python3

import re
n, m = map(int, input().split())        
matrix = [ input() for _ in range(n) ] 

# a very Pythonic way to transpose and flatten a list of iterables - barely readable but you know what it's doing
transpose = ''.join([c for ls in zip(*matrix) for c in ls])

# Lookaheads and Lookbehinds let us use a simple 'sub' to replace every sandwiched cluster of symbols.
print(re.sub(r"(?<=\w)[!@#$%& ]+(?=\w)", " ", transpose))

  • gumedekhumbulan1
     + 0 comments

    !/bin/python3

    import math import os import random import re import sys

    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)

    text = "" for col in range(len(matrix[0])): for row in matrix: text += row[col]

    result = re.sub(r'(?<=\w)[\W]+(?=\w)', ' ', text)

    print(result)

    result = re.sub(r'(?<=\w)[\W]+(?=\w)', ' ', text)

    print(result)

  • henryangchingian
     + 0 comments
    import math
import os
import random
import re
import sys

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)

B = [matrix[a][i] for i in range(m) for a in range(n)]       
B = "".join(B)

pat = r'(?<=[a-zA-Z])[^a-zA-Z]{1,}(?=[a-zA-Z])'
C = re.sub(pat,' ',B)
print(C)

  • shiaramoon
     + 0 comments
    #!/bin/python3

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)

decoded = ""

for m in range(M):
    for n in range(N):
        decoded +=matrix[n][m]

clean = re.sub(r'(?<=[A-Za-z0-9])[^A-Za-z0-9]+(?=[A-Za-z0-9])', ' ', decoded)

print(clean)