Farz0l1x

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Dec 2nd, 2023
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Python 0.76 KB | None | 0 0
  1. file = open('5A.txt')
  2. A = list(map(int, file.readlines()))
  3. count = 0
  4. for i in range(len(A)):
  5.     for j in range(i + 1, len(A)):
  6.         for k in range(j + 1, len(A)):
  7.             if A[i] % 19 == 0 and A[j] % 19 == 0 and A[k] % 19 == 0:
  8.                 count += 1
  9. print(count)
  10.  
  11. def fac(n):
  12.     if n == 1:
  13.         return 1
  14.     return fac(n - 1) * n
  15. #Функция нахождения факториала числа n нужна для применения формулы количества сочетаний в строке 23
  16.  
  17. file = open('5B.txt')
  18. B = list(map(int, file.readlines()))
  19. k19 = 0
  20. for i in range(len(B)):
  21.     if B[i] % 19 == 0:
  22.         k19 += 1
  23. print(fac(k19) // (fac(3) * fac(k19 - 3)))
  24. #Проверка: в 20 и 21 сроках A -> B
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