From 1879caa1dd80cb11dd62403663917ad4bf7cc68e Mon Sep 17 00:00:00 2001 From: Charles Date: Sun, 11 Aug 2019 22:41:34 +0200 Subject: rename all file with 3 zero padding --- python/11-largest_product_in_a_grid.py | 80 ---------------------------------- 1 file changed, 80 deletions(-) delete mode 100644 python/11-largest_product_in_a_grid.py (limited to 'python/11-largest_product_in_a_grid.py') diff --git a/python/11-largest_product_in_a_grid.py b/python/11-largest_product_in_a_grid.py deleted file mode 100644 index c98a41e..0000000 --- a/python/11-largest_product_in_a_grid.py +++ /dev/null @@ -1,80 +0,0 @@ -from functools import reduce - -grid = [ - [8, 2, 22, 97, 38, 15, 0, 40, 0, 75, 4, 5, 7, 78, 52, 12, 50, 77, 91, 8], - [49, 49, 99, 40, 17, 81, 18, 57, 60, 87, 17, 40, 98, 43, 69, 48, 4, 56, 62, 0], - [81, 49, 31, 73, 55, 79, 14, 29, 93, 71, 40, 67, 53, 88, 30, 3, 49, 13, 36, 65], - [52, 70, 95, 23, 4, 60, 11, 42, 69, 24, 68, 56, 1, 32, 56, 71, 37, 2, 36, 91], - [22, 31, 16, 71, 51, 67, 63, 89, 41, 92, 36, 54, 22, 40, 40, 28, 66, 33, 13, 80], - [24, 47, 32, 60, 99, 3, 45, 2, 44, 75, 33, 53, 78, 36, 84, 20, 35, 17, 12, 50], - [32, 98, 81, 28, 64, 23, 67, 10, 26, 38, 40, 67, 59, 54, 70, 66, 18, 38, 64, 70], - [67, 26, 20, 68, 2, 62, 12, 20, 95, 63, 94, 39, 63, 8, 40, 91, 66, 49, 94, 21], - [24, 55, 58, 5, 66, 73, 99, 26, 97, 17, 78, 78, 96, 83, 14, 88, 34, 89, 63, 72], - [21, 36, 23, 9, 75, 0, 76, 44, 20, 45, 35, 14, 0, 61, 33, 97, 34, 31, 33, 95], - [78, 17, 53, 28, 22, 75, 31, 67, 15, 94, 3, 80, 4, 62, 16, 14, 9, 53, 56, 92], - [16, 39, 5, 42, 96, 35, 31, 47, 55, 58, 88, 24, 0, 17, 54, 24, 36, 29, 85, 57], - [86, 56, 0, 48, 35, 71, 89, 7, 5, 44, 44, 37, 44, 60, 21, 58, 51, 54, 17, 58], - [19, 80, 81, 68, 5, 94, 47, 69, 28, 73, 92, 13, 86, 52, 17, 77, 4, 89, 55, 40], - [4, 52, 8, 83, 97, 35, 99, 16, 7, 97, 57, 32, 16, 26, 26, 79, 33, 27, 98, 66], - [88, 36, 68, 87, 57, 62, 20, 72, 3, 46, 33, 67, 46, 55, 12, 32, 63, 93, 53, 69], - [4, 42, 16, 73, 38, 25, 39, 11, 24, 94, 72, 18, 8, 46, 29, 32, 40, 62, 76, 36], - [20, 69, 36, 41, 72, 30, 23, 88, 34, 62, 99, 69, 82, 67, 59, 85, 74, 4, 36, 16], - [20, 73, 35, 29, 78, 31, 90, 1, 74, 31, 49, 71, 48, 86, 81, 16, 23, 57, 5, 54], - [1, 70, 54, 71, 83, 51, 54, 69, 16, 92, 33, 48, 61, 43, 52, 1, 89, 19, 67, 48] -] - - -def isCorrectIndex(x, y): - if 0 <= x < 20 and 0 <= y < 20: - return True - return False - - -def getAdjacentNumbers(x, y): - adjacent = { - 'vertical': [], - 'horizontal': [], - 'diagonal': [], - 'anti-diagonal': [] - } - - for i in range(4): - # vertical list - modifiedX = x + i - if isCorrectIndex(modifiedX, y): - adjacent['vertical'].append(grid[modifiedX][y]) - - # horizontal list - modifiedY = y + i - if isCorrectIndex(x, modifiedY): - adjacent['horizontal'].append(grid[x][modifiedY]) - - # diagonal list - if isCorrectIndex(modifiedX, modifiedY): - adjacent['diagonal'].append(grid[modifiedX][modifiedY]) - - # anti-diagonal list - for i, j in zip(range(4), range(4)): - AntiDiagModifiedX = x - j - modifiedY = y + i - if isCorrectIndex(AntiDiagModifiedX, modifiedY): - adjacent['anti-diagonal'].append(grid[AntiDiagModifiedX][modifiedY]) - - # filtering - for key in adjacent.keys(): - if len(adjacent[key]) != 4: - adjacent[key] = [] - - return adjacent - - -largest_sum = 0 -positions = ((x, y) for x in range(20) for y in range(20)) -for x, y in positions: - adjacent = getAdjacentNumbers(x, y) - for key in adjacent.keys(): - multiplied = reduce(lambda acc, val: acc * val, adjacent[key], 1) - if multiplied > largest_sum: - largest_sum = multiplied - -print(largest_sum) -- cgit