1904. The Number of Full Rounds You Have Played: RETRY

Author: tan-wei

src/solution/mod.rs

@@ -1435,3 +1435,4 @@ mod s1899_merge_triplets_to_form_target_triplet;
 mod s1900_the_earliest_and_latest_rounds_where_players_compete;
 mod s1901_find_a_peak_element_ii;
 mod s1903_largest_odd_number_in_string;
+mod s1904_the_number_of_full_rounds_you_have_played;

src/solution/s1904_the_number_of_full_rounds_you_have_played.rs

@@ -0,0 +1,81 @@
+/**
+ * [1904] The Number of Full Rounds You Have Played
+ *
+ * You are participating in an online chess tournament. There is a chess round that starts every 15 minutes. The first round of the day starts at 00:00, and after every 15 minutes, a new round starts.
+ *
+ * 	For example, the second round starts at 00:15, the fourth round starts at 00:45, and the seventh round starts at 01:30.
+ *
+ * You are given two strings loginTime and logoutTime where:
+ *
+ * 	loginTime is the time you will login to the game, and
+ * 	logoutTime is the time you will logout from the game.
+ *
+ * If logoutTime is earlier than loginTime, this means you have played from loginTime to midnight and from midnight to logoutTime.
+ * Return the number of full chess rounds you have played in the tournament.
+ * Note: All the given times follow the 24-hour clock. That means the first round of the day starts at 00:00 and the last round of the day starts at 23:45.
+ *  
+ * Example 1:
+ *
+ * Input: loginTime = "09:31", logoutTime = "10:14"
+ * Output: 1
+ * Explanation: You played one full round from 09:45 to 10:00.
+ * You did not play the full round from 09:30 to 09:45 because you logged in at 09:31 after it began.
+ * You did not play the full round from 10:00 to 10:15 because you logged out at 10:14 before it ended.
+ *
+ * Example 2:
+ *
+ * Input: loginTime = "21:30", logoutTime = "03:00"
+ * Output: 22
+ * Explanation: You played 10 full rounds from 21:30 to 00:00 and 12 full rounds from 00:00 to 03:00.
+ * 10 + 12 = 22.
+ *
+ *  
+ * Constraints:
+ *
+ * 	loginTime and logoutTime are in the format hh:mm.
+ * 	00 <= hh <= 23
+ * 	00 <= mm <= 59
+ * 	loginTime and logoutTime are not equal.
+ *
+ */
+pub struct Solution {}
+
+// problem: https://leetcode.com/problems/the-number-of-full-rounds-you-have-played/
+// discuss: https://leetcode.com/problems/the-number-of-full-rounds-you-have-played/discuss/?currentPage=1&orderBy=most_votes&query=
+
+// submission codes start here
+
+impl Solution {
+    pub fn number_of_rounds(login_time: String, logout_time: String) -> i32 {
+        0
+    }
+}
+
+// submission codes end
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    #[ignore]
+    fn test_1904_example_1() {
+        let login_time = "09:31".to_string();
+        let logout_time = "10:14".to_string();
+
+        let result = 1;
+
+        assert_eq!(Solution::number_of_rounds(login_time, logout_time), result);
+    }
+
+    #[test]
+    #[ignore]
+    fn test_1904_example_2() {
+        let login_time = "21:30".to_string();
+        let logout_time = "03:00".to_string();
+
+        let result = 22;
+
+        assert_eq!(Solution::number_of_rounds(login_time, logout_time), result);
+    }
+}