| 1 | pub fn summary_ranges(nums: Vec<i32>) -> Vec<String> { |
| 2 | let mut ret = vec!(); |
| 3 | if nums.len() == 0 { |
| 4 | return ret; |
| 5 | } |
| 6 | pub fn assemble(current: Vec<i32>) -> String { |
| 7 | if current.len() == 1 { |
| 8 | current[0].to_string() |
| 9 | } else { |
| 10 | let f = current.first().unwrap().to_string(); |
| 11 | let l = current.last().unwrap().to_string(); |
| 12 | vec!(f, "->".to_string(), l).join("") |
| 13 | } |
| 14 | } |
| 15 | let mut prev = nums[0]; |
| 16 | let mut current = vec!(prev); |
| 17 | for num in &nums[1..] { |
| 18 | if num - prev != 1 { |
| 19 | ret.push(assemble(current)); |
| 20 | current = vec!(*num); |
| 21 | } else { |
| 22 | current.push(*num); |
| 23 | } |
| 24 | prev = *num; |
| 25 | } |
| 26 | ret.push(assemble(current)); |
| 27 | ret |
| 28 | } |
| 29 | |
| 30 | fn main() { |
| 31 | let nums = vec![]; |