1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
fn good_integer(input: &u64) -> Vec<String> {
let input_string = input.to_string();
if input_string.len() < 3 {
return ["-1".to_string()].to_vec();
}
let mut vec = Vec::new();
let mut count = 1;
let mut chars = input_string.chars();
let mut last = chars.next().unwrap();
for current in chars {
if last == current {
count += 1;
} else {
if count == 3 {
vec.push(format!("{}{}{}", last, last, last));
}
count = 1;
}
last = current;
}
// catch possible trailing valid ints
if count == 3 {
vec.push(format!("{}{}{}", last, last, last));
}
if vec.len() > 0 {
return vec;
}
["-1".to_string()].to_vec()
}
fn main() {
let inputs = [12333, 12333455557, 1233345557, 1233333, 333, 3331, 3333];
for input in inputs {
let goodness = good_integer(&input);
println!("{} => {:?}", input, goodness);
}
}
|
