Jan-02 Detect Capital

[chenye-814]

https://leetcode.com/problems/detect-capital/description/

[chenye-814]

view code

use std::str::Chars;
impl Solution {
    pub fn detect_capital_use(word: String) -> bool {
        fn check_consistency(lower_flag: bool, mut chars: Chars) -> bool {
            while let Some(char) = chars.next() {
                if char.is_lowercase() != lower_flag {
                    return false
                }
            }
            return true
        }
        let mut chars = word.chars();
        let first_char = chars.next().unwrap();
        if first_char.is_lowercase() {
            return check_consistency(true, chars)
        }
        if let Some(second_char) = chars.next() {
            return check_consistency(second_char.is_lowercase(), chars)
        }
        return true

    }
}