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day10_cathode-ray_tube.py
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day10_cathode-ray_tube.py
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#!/usr/bin/env python3
def main(program: str) -> None:
register = 1
cycle = 0
interesting_cycles = [20, 60, 100, 140, 180, 220]
sum_strengths = 0
rows = ["", "", "", "", "", ""]
for line in program.splitlines():
cycle += 1
if cycle in interesting_cycles:
sum_strengths += register * cycle
if (cycle - 1) % 40 in range(register - 1, register + 2):
rows[(cycle - 1) // 40] += "#"
else:
rows[(cycle - 1) // 40] += "."
instruction, *args = line.split()
if instruction == "addx":
cycle += 1
if cycle in interesting_cycles:
sum_strengths += register * cycle
if (cycle - 1) % 40 in range(register - 1, register + 2):
rows[(cycle - 1) // 40] += "#"
else:
rows[(cycle - 1) // 40] += "."
register += int(args[0])
elif instruction == "noop":
pass
print("Part One:")
print(sum_strengths)
print("Part Two:")
for row in rows:
print(row)
if __name__ == "__main__":
INPUT = """addx 15
addx -11
addx 6
addx -3
addx 5
addx -1
addx -8
addx 13
addx 4
noop
addx -1
addx 5
addx -1
addx 5
addx -1
addx 5
addx -1
addx 5
addx -1
addx -35
addx 1
addx 24
addx -19
addx 1
addx 16
addx -11
noop
noop
addx 21
addx -15
noop
noop
addx -3
addx 9
addx 1
addx -3
addx 8
addx 1
addx 5
noop
noop
noop
noop
noop
addx -36
noop
addx 1
addx 7
noop
noop
noop
addx 2
addx 6
noop
noop
noop
noop
noop
addx 1
noop
noop
addx 7
addx 1
noop
addx -13
addx 13
addx 7
noop
addx 1
addx -33
noop
noop
noop
addx 2
noop
noop
noop
addx 8
noop
addx -1
addx 2
addx 1
noop
addx 17
addx -9
addx 1
addx 1
addx -3
addx 11
noop
noop
addx 1
noop
addx 1
noop
noop
addx -13
addx -19
addx 1
addx 3
addx 26
addx -30
addx 12
addx -1
addx 3
addx 1
noop
noop
noop
addx -9
addx 18
addx 1
addx 2
noop
noop
addx 9
noop
noop
noop
addx -1
addx 2
addx -37
addx 1
addx 3
noop
addx 15
addx -21
addx 22
addx -6
addx 1
noop
addx 2
addx 1
noop
addx -10
noop
noop
addx 20
addx 1
addx 2
addx 2
addx -6
addx -11
noop
noop
noop
"""
main(INPUT)