feat: resolved

Author: jtr109

my_calendar_i/src/lib.rs

@@ -1,28 +1,35 @@
-struct MyCalendar {}
+pub struct MyCalendar {
+    books: Vec<(i32, i32)>,
+}
 
-/**
- * `&self` means the method takes an immutable reference.
- * If you need a mutable reference, change it to `&mut self` instead.
- */
 impl MyCalendar {
-    fn new() -> Self {}
+    pub fn new() -> Self {
+        Self { books: vec![] }
+    }
 
-    fn book(&self, start: i32, end: i32) -> bool {}
+    pub fn book(&mut self, start: i32, end: i32) -> bool {
+        let mut i = 0;
+        for (j, (s, e)) in self.books.iter().enumerate() {
+            if *e <= start {
+                continue;
+            };
+            if end > *s {
+                return false;
+            }
+            i = j;
+        }
+        self.books.insert(i, (start, end));
+        true
+    }
 }
 
-/**
- * Your MyCalendar object will be instantiated and called as such:
- * let obj = MyCalendar::new();
- * let ret_1: bool = obj.book(start, end);
- */
-
 #[cfg(test)]
 mod tests {
     use super::*;
 
     #[test]
     fn example_1() {
-        let obj = MyCalendar::new();
+        let mut obj = MyCalendar::new();
         assert!(obj.book(10, 20));
         assert!(!obj.book(15, 25));
         assert!(obj.book(20, 30));