Function rectangle_sum 

pub fn rectangle_sum(reader: impl Read, writer: impl Write)

✅ AC 175ms

problem here

Detail

Case Name	Status	Exec Time
example_00	AC	0 ± 0 ms
small_00	AC	0 ± 0 ms
small_01	AC	0 ± 0 ms
small_02	AC	0 ± 0 ms
random_00	AC	108 ± 5 ms
random_01	AC	119 ± 2 ms
random_02	AC	66 ± 1 ms
max_random_00	AC	167 ± 3 ms
max_random_01	AC	166 ± 2 ms
max_random_02	AC	166 ± 2 ms
xy_concentrate_00	AC	153 ± 3 ms
xy_concentrate_01	AC	175 ± 11 ms
xy_concentrate_02	AC	168 ± 9 ms
n_131072_00	AC	139 ± 8 ms