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-rw-r--r--detect_capital.rs20
1 files changed, 20 insertions, 0 deletions
diff --git a/detect_capital.rs b/detect_capital.rs
new file mode 100644
index 0000000..454381d
--- /dev/null
+++ b/detect_capital.rs
@@ -0,0 +1,20 @@
+struct Solution;
+
+impl Solution {
+ pub fn detect_capital_use(word: String) -> bool {
+ let v: Vec<char> = word.chars().collect();
+ if v[0].is_lowercase() {
+ return v.iter().all(|&c| c.is_lowercase());
+ }
+ if v.len() > 1 {
+ let b = v[1].is_lowercase();
+ return v.iter().skip(1).all(|&c| c.is_lowercase() == b);
+ }
+ true
+ }
+}
+
+fn main() {
+ let word = String::from("USA");
+ print!("{}", Solution::detect_capital_use(word)); //true
+}