Function number_of_substrings 

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

✅ AC 51ms

problem here

Detail

Case Name	Status	Exec Time
example_00	AC	0 ± 0 ms
example_01	AC	0 ± 0 ms
example_02	AC	0 ± 0 ms
example_03	AC	0 ± 0 ms
random_00	AC	40 ± 4 ms
random_01	AC	47 ± 3 ms
random_02	AC	4 ± 0 ms
random_03	AC	42 ± 1 ms
random_04	AC	25 ± 0 ms
max_random_00	AC	50 ± 2 ms
max_random_01	AC	51 ± 2 ms
max_random_02	AC	50 ± 1 ms
max_random_03	AC	49 ± 0 ms
max_random_04	AC	49 ± 1 ms
all_same_00	AC	8 ± 1 ms
all_same_01	AC	9 ± 0 ms
all_same_02	AC	9 ± 0 ms
all_same_03	AC	9 ± 0 ms
all_same_04	AC	9 ± 0 ms
fib_str_00	AC	23 ± 2 ms
fib_str_01	AC	15 ± 0 ms
fib_str_02	AC	17 ± 0 ms
fib_str_03	AC	12 ± 0 ms
fib_str_04	AC	23 ± 0 ms