Upsert 2490-circular-sentence.rs

Author: memorycancel

2490-circular-sentence.rs

@@ -0,0 +1,26 @@
+pub fn is_circular_sentence(sentence: String) -> bool {
+    if sentence.chars().nth(0).unwrap() != 
+        sentence.chars().nth(sentence.len() - 1).unwrap() {
+        return false
+    }
+    let mut count = 0;
+    let mut prev_char: char = '?';
+    for word in sentence.split_ascii_whitespace() {
+        if count == 0 {
+            prev_char = word.chars().last().unwrap()
+        } else {
+            let curr_char = word.chars().nth(0).unwrap();
+            if curr_char != prev_char { return false }
+            prev_char = word.chars().last().unwrap();
+        }
+        count += 1
+    }
+    true
+}
+
+fn main() {
+    let sentence = "leetcode exercises sound delightful".to_string();
+    println!("{:?}", is_circular_sentence(sentence));
+    let sentence = "eetcode".to_string();
+    println!("{:?}", is_circular_sentence(sentence));
+}