Day03_Part1.py

import math
input = ['.#..............##....#.#.####.',
'##..........#.....##...........',
'.......#....##...........#.#...',
'.........#.#...#..........#....',
'.........#..#................##',
'..#...#..#..#...........#......',
'...................#...##..##..',
'........#.....##...#.#.#...#...',
'#..#.##......#.#..#..........#.',
'......#.#...#.#...#........##.#',
'.....#.####........#...........',
'...###..#............#.........',
'.....#.......##......#...#.....',
'#......##......................',
'......#..............#.........',
'..##...#....###.##.............',
'#...#..........#.#.........#...',
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'#..............#....#.....#....',
'.#......#....#...#............#',
'.####..........##..#.#.........',
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'....................#....#.#...',
'..........###.#...............#',
'.#...........#...##............',
'.#.#..#.....#...#....#.......#.',
'.##........#..#....#...........',
'.........#.....#......###......',
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'........#..#.#...........#..#..',
'#.........#......#.....##.#.#..',
'........#.#.#....#.............',
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'.#....###....#..............#..',
'.#....#.......#....#..#.....#..',
'.....#.....#...................',
'..#.....#......#......#........',
'......##.##...#...#...#...#.##.',
'##...#....#...#..#...#...#.....',
'..#.....#...#...##.##...#......',
'.....#.............##...#......',
'.....................#.##..#...',
'#...#....#....#........#.....#.',
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'.....##............#.#.......#.',
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'#..#.......#.......#...#.......',
'..#...........................#',
'......#.......#..#......#......',
'.#.......#..................##.',
'..#.........#..#.##.#....#...##',
'...#..#....#...#....#.#........',
'.#...#........##..#..#.......#.',
'.....#........#....#....#..#...',
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'...#.......#........#....##.#.#',
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'.....#.#...##.#......##....#.#.',
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'..#.#....###..#...#...##...##..',
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'............#.#.#....###.......',
'#..#...#.#.####...#..#...#.....',
'.##.......#.##...#.............',
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'...#..#.#...#...###..#.#..#.#..',
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'#..#....#.....#.......#.##.#..#',
'.....#.........##.............#',
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'.#....###..#.#.....###.#..#....',
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'............#....#..#.........#',
'..##.....#.#...#.......#...#...',
'...#...#..#......##...#.....##.',
'......#.##............##.#....#',
'....#......#...##.....#.....###',
'.#.###...............#...#.#...',
'..#....................##...#..',
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'.##......#.#...#......#....#...',
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'#..........#..#.#..........#..#',
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'..............#.....#..#...#.##',
'...............................',
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'...........#..........#........',
'...#.####..#......#...#....#...',
'##......#.##.....#.............',
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'...#........#.......#.#..#.#.#.',
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'.....##.#...............##...#.',
'.#..##.##......................',
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'...#..#.#......#.#...........##',
'##....#...#.....###..#...#....#',
'...#.....#.#.#......##...#...#.',
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'.................##..##....#...',
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'...#.#...#.....#........#...#..',
'#...#.#......#.#...........#...',
'..#..........#....#..........#.',
'..#................#...........',
'#...#.#....#.#.......#.........',
'.#...........##..#....#....#..#',
'.##........#.....#...#..#....#.',
'......#......#...#.............',
'.......#..#...#.##....#..#.#...',
'.......#......#....#....#.#.#..',
'..........##.....#....##.#.....',
'.........##..#...#.....#..#....',
'...#....#..........#..#...#..#.',
'.......#.....##.#..#.....#...#.',
'#...#......#......#...#........',
'#..#....#.#......#......#......',
'.......#.##....................',
'...##...#.....#......##......#.',
'.#...................###.......',
'....#........###...#........#..',
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'..##......#..##..##......#.#...',
'........##....##.......#...#...',
'.#.#....#.....#.....#....#....#',
'...##.#.............#....##....',
'.........#.....#...#......#....',
'..#.....#............#....##...',
'..##.....#.....##.##...........',
'#....#.#.......#..#......#.....',
'##.......#.....#.....####....#.',
'##...#.......#...#.....#.......',
'#.....#..##.##...##..#.....#..#',
'..........#......#..#.#........',
'..##.#......#..............#...',
'.#...#..........#.......#....#.',
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'.##....#......#.#.........#..##',
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'.##.................#.#........',
'...#.#...#..#..#.....#.#.......',
'.#.#.......#...................',
'..#..#.....#......#.....##..##.',
'.#........#.##......#..........',
'....##...#............#.#....#.',
'.......#.#..#....##.#....#....#',
'......####...#..#.....#........',
'..........#..#.........#.#..#.#',
'..........##.........#.##......',
'.##..#.#.....#.....#....#......',
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'.....##.........#...#...##...##',
'........#.##.#...#.....#....#.#',
'#......##.#.##..........##.....',
'#..#..#........#.........#..#..',
'...............#.#..##.........',
'.#.......##.#..#....#...#....##',
'.#..##.....##......#....#...#.#',
'........#...#.........#.....#.#',
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'#......#....###..#..#..........',
'.....#.#.....##....#.#.......#.',
'...#...#...............#.#.....',
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'.........#.................#.##',
'.#.....#.##..#.................',
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'..#..#.#.#...#.......#.##......',
'..........#..#.........#.......',
'.#..........#...#....#..#...##.',
'.#.#.#.###.....#...#.#.#.......',
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'.#.#.............#..#......#.#.',
'.#.#..........##..#.....#..#.#.',
'...........#.##..#...#.#.....#.',
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'..#................#.#...#....#',
'...............##........##....',
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'...#......#.#.#........#.......',
'#..............#..##.#..##.....',
'.#.#.###................##.....',
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'.......##..#............#...#..',
'...#...#...........#.....#.....',
'........#......#.#.#......#..#.',
'#.##.......#......#..#..#.#....',
'...#........#...........#...#..',
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'.............#....#....#.......',
'....#.........#........#......#',
'..#............##..#.........#.',
'.#...#...#..#...#........#..#..',
'...#....##..............#......',
'...........#...#....#.#.##..###',
'..#....#......#.........#..#...',
'.......#...#...................',
'.#...#.#...................#...',
'.#.....##.#.......#.#.#...##..#',
'.....#..#.#.........#...#..##..',
'.#..#.##.#......#......#.#...#.',
'......#..#....##..#....##....##',
'#...#......##........##........',
'.#.........###................#',
'.................#..###..#.#...',
'..#.#........#..#........#...#.',
'#.#....#....#..#...#.#......#..',
'.#.#.............###.........#.',
'.....#...............##...#...#',
'..............#...#........#..#',
'...................#..#.......#',
'#......................#.....#.',
'...#.........#..##...#...#.##..',
'.....#..........#.........#....',
'.....#...#............#..#.....',
'.............#............#....',
'...#.........#.................',
'#...........#.#...............#',
'.....#...#.....#..#.##.......##',
'...#....#.#...........#........',
'.........................#.#...',
'.#..#...........#.#........#...',
'.............#.#.....#..#....#.',
'.....#...#.###...#..#........#.',
]

height=len(input)
width = len(input[0])
chars_needed = height*3
reps_needed = math.ceil(chars_needed/width)
expanded_map = [a*reps_needed for a in input]
trees=0
for i in range(height-1):
    if expanded_map[i+1][(i+1)*3]=='#':
        trees+=1
    i+=1
print(trees)