Advent of Code 2022 Day 10

— Day 10: Cathode-Ray Tube —

You have a cathode ray tube device and need to figure out the code being sent by the CPU.

Find the signal strength during the 20th, 60th, 100th, 140th, 180th, and 220th cycles. What is the sum of these six signal strengths?

with open('data-2022-10.txt', 'r') as f:
    inp = f.read().splitlines()

So many loops in 2022

reg = 1
cyc = 0
ss = 0
cyc_le = [20, 60, 100, 140, 180, 220, ]

def add_ss(ss, reg, c):
    if c in cyc_le: 
        ss += reg * c
    return ss


for i in inp:
    if i == 'noop':
        # no operation
        cyc += 1
        ss = add_ss(ss, reg, cyc)
    else:
        j,k = i.split(' ')
        cyc += 1
        ss = add_ss(ss, reg, cyc)
        cyc += 1
        ss = add_ss(ss, reg, cyc)
        reg += int(k)

ss
# 17380

17380

— Part Two —

The signal is actually a screen.

Render the image given by your program. What eight capital letters appear on your CRT?

import numpy as np

scr = np.full((6,40), '.', dtype='U1')
scr[:] = '.'

reg = 1
cyc = 0

def add_bit(s, r, c):
    # print(r,c)
    z = 0
    while c - 40 > 0:
        c -= 40
        z += 1
    if c in range(r-1, r+2):
        # print(z,c)
        scr[z,c] = '#'
    return s


for i in inp:
    # print('sprite: ' + str(reg))
    # print('cycle: ' + str(cyc))
    if i == 'noop':
        # no operation
        scr = add_bit(scr, reg, cyc)
        cyc += 1
    else:
        j,k = i.split(' ')
        scr = add_bit(scr, reg, cyc)
        cyc += 1
        scr = add_bit(scr, reg, cyc)
        cyc += 1
        reg += int(k)
    # [row.tobytes() for row in scr]

for row in scr:
    print(''.join(map(str, row)))
    
# [row.tobytes() for row in scr]

# FGCUZREC

####..##...##..#..#.####.###..####..##..
.....#..#.#..#.#..#....#.#..#.#....#..#.
.##..#....#....#..#...#..#..#.###..#....
.....#.##.#....#..#..#...###..#....#....
.....#..#.#..#.#..#.#....#.#..#....#..#.
......###..##...##..####.#..#.####..##..