如何从 Python 中的给定字符串打印偶数和奇数字符

Question

I was doing a problem in Python: Problem statement

However, my code is not getting the output I want. I want to store the strings in an array (2xtestcases) (given by the size of 'testcases' and then for each word loop over the index of the strings of the arrays and print the even and uneven word.

import numpy as np
import array as arr

# testcases
testcases = int(input())
# list of empty strings
strings = [None] * testcases

# list of translated strings
strings_translated = np.zeros((2, testcases))

for i in range(0, testcases):
    strings[i] = input()
    for k in strings[i]:
        if k % 2 == 0:
            strings_translated[1, i] = strings_translated[1, i] + k
        else:
            strings_translated[2, i] = strings_translated[2, i] + k

for i in range(0, testcases):
    print(strings_translated[1, i] + strings_translated[2, i])

I get the following error:

if k % 2 == 0:
TypeError: not all arguments converted during string formatting

Answer 1

Would you like to try this: (just a sample code to give you hints)

N = len(s)   # your string's len

evens = ''.join(s[i] for i in range(0, N,2))  # 'Hce' 

# then do the odds character as well