45 lines
1 KiB
Python
45 lines
1 KiB
Python
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gsn = 9798 # input
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def get_power(x, y):
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rack_id = x + 10
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power = ((rack_id * y) + gsn) * rack_id
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h_digit = int(str(power)[-3]) if len(str(power)) >= 3 else 0
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return h_digit - 5
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size = 300
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side = 1
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top = 1
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totals = [[0 for i in range(size)]]
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printing = size <= 10
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if printing:
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print(*range(side, side+size), sep='\t')
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print('_ _ _\t|'*size)
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for y in range(1, size):
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row = [0]
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totals.append([0])
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p = []
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for x in range(1, size):
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point = get_power(x+side, y+top)
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left = row[x-1] if len(row) > 0 else 0
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row.append(left + point)
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up = totals[y-1][x] if len(totals) > 1 else 0
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totals[y].append(up + left + point)
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p.append(point)
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if printing:
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print(str(y+top), end = '\t| ')
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print(*p, sep='\t| ')
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print('_ _ _\t|'*size)
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largest = ((0,0),0)
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for y in range(1, len(totals)-3):
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for x in range(1, len(totals[y])-3):
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p = ((x+side, y+top), totals[y+2][x+2] - totals[y-1][x+2] - totals[y+2][x-1] + totals[y-1][x-1])
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if p[1] > largest[1]:
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largest = p
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print('largest:\n\
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\tco-ordinates: {}\n\
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\tvalue: {}'.format(largest[0], largest[1]))
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