Function number_of_substrings 

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

✅ AC 447ms

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	108 ± 1 ms
random_01	AC	129 ± 1 ms
random_02	AC	11 ± 0 ms
random_03	AC	121 ± 0 ms
random_04	AC	73 ± 0 ms
max_random_00	AC	150 ± 1 ms
max_random_01	AC	146 ± 2 ms
max_random_02	AC	146 ± 2 ms
max_random_03	AC	143 ± 2 ms
max_random_04	AC	144 ± 2 ms
all_same_00	AC	89 ± 0 ms
all_same_01	AC	90 ± 1 ms
all_same_02	AC	91 ± 1 ms
all_same_03	AC	89 ± 0 ms
all_same_04	AC	88 ± 0 ms
fib_str_00	AC	447 ± 3 ms
fib_str_01	AC	300 ± 2 ms
fib_str_02	AC	277 ± 1 ms
fib_str_03	AC	246 ± 1 ms
fib_str_04	AC	444 ± 3 ms