ryadky

1

a = input('vvedit rechennya: ')
total_symbols = 0
total_words = 0

for i in a:
    total_symbols += 1

for i in a.split():
    total_words += 1

print('serednya dovzhyna slova:', round(total_symbols / total_words, 2), 'symvoliv')

2

a = input('vvedit rechennya: ')
b = input('vvedit slovo: ')
total_words = 0

for i in a.split():
    if i == b:
        total_words += 1
        
print('slovo zustrichaetsya:', total_words , 'raz(y)')

3

from random import *

digits = ["1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "b", 
"c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", 
"p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "A", "B",
"C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", 
"P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "$", "@", 
"&", "?", "+", "-", "*", "/", "%", "=", "!", "№", "_", "^", ",", "."]

a = int(input('vvedit dovzhynu parolya: '))

password = ''

for i in range(a):
    password += choice(digits)

print('vash parol:', password)

7

a = input('vvedit ryadok: ')

for i in range(len(a) + 1):
    space = ' ' * (len(a) - i)
    symbol = a[:i]
    print(space + symbol)

for i in range(1, len(a)):
    symbol = a[i:]
    print(symbol)

8

a = input('vvedit ryadok: ').lower()
s= 0
filters = ''

for i in a:
    if i.isalnum():
        filters += i

for i in range(len(filters)):
    if filters[i] == filters[i * (-1) - 1]:
        s += 1

if s == len(filters):
    print('palindrom')
else:
    print('ne palindrom')