From 71dc5fcd9d1f56a85fe1775dfc71925106ee9f93 Mon Sep 17 00:00:00 2001 From: Thibaud Date: Tue, 17 Dec 2024 16:58:25 +0100 Subject: [PATCH] 2024 day 15 part 1 --- 2024/day15/day15.py | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) diff --git a/2024/day15/day15.py b/2024/day15/day15.py index 9d459d2..2c1ab0e 100644 --- a/2024/day15/day15.py +++ b/2024/day15/day15.py @@ -48,8 +48,8 @@ def push(grid, pos, movement): elif movement == "<": start_x, end_x = int(start_pos.real), int(end_pos.real) y = int(start_pos.imag) - for i in range(start_x, end_x + 1): - grid[y][i+1] = "O" # shift "O" to the left + for i in range(start_x, end_x - 1, -1): + grid[y][i-1] = "O" # shift "O" to the left grid[y][start_x] = "." elif movement == "v": start_y, end_y = int(start_pos.imag), int(end_pos.imag) @@ -60,11 +60,20 @@ def push(grid, pos, movement): elif movement == "^": start_y, end_y = int(start_pos.imag), int(end_pos.imag) x = int(start_pos.real) - for i in range(end_y, start_y - 1, -1): - grid[i+1][x] = "O" # shift "O" up + for i in range(start_y, end_y - 1, -1): + grid[i-1][x] = "O" # shift "O" up grid[start_y][x] = "." +def calculate_gps_coords(grid): + total = 0 + for y, row in enumerate(grid): + for x, _ in enumerate(row): + if grid[y][x] == "O": + total += 100*y + x + return total + + def main(content): grid, movements = content.split("\n\n") grid = [list(x) for x in grid.split("\n")] @@ -87,7 +96,9 @@ def main(content): pos = new_pos case "#": pass case c: raise RuntimeError("This should never happen", c) - debug_print(grid, movement) + #debug_print(grid, movement) + part1 = calculate_gps_coords(grid) + print("Part 1: ", part1) if __name__ == "__main__":