Its cute how the c++ version of day 5 is shorter

2020/day_5/binary_boarding.py

@@ -18,7 +18,9 @@ def from_binary(bsp):
 
     return int(bsp.replace('F', '0').replace('L', '0').replace('B', '1').replace('R', '1'), 2)
 
-def get_id(row, col): return row * 8 + col
+def get_id(row, col):
+    # return row * 8 + col
+    return row << 3 | col
 
 def parse_seats(data):
     seats = []
@@ -45,6 +47,3 @@ def solve_b(seats):
 seats = parse_seats(data)
 print(solve_a(seats))
 print(solve_b(seats))
-
-
-