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- file = open('5A.txt')
- A = list(map(int, file.readlines()))
- count = 0
- for i in range(len(A)):
- for j in range(i + 1, len(A)):
- for k in range(j + 1, len(A)):
- if A[i] % 19 == 0 and A[j] % 19 == 0 and A[k] % 19 == 0:
- count += 1
- print(count)
- def fac(n):
- if n == 1:
- return 1
- return fac(n - 1) * n
- #Функция нахождения факториала числа n нужна для применения формулы количества сочетаний в строке 23
- file = open('5B.txt')
- B = list(map(int, file.readlines()))
- k19 = 0
- for i in range(len(B)):
- if B[i] % 19 == 0:
- k19 += 1
- print(fac(k19) // (fac(3) * fac(k19 - 3)))
- #Проверка: в 20 и 21 сроках A -> B
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