add 1344

fishercoder1534 · fishercoder1534 · commit 44a1cfd2756d · 2020-02-08T10:11:00.000-08:00
diff --git a/README.md b/README.md
@@ -8,6 +8,7 @@ _If you like this project, please leave me a star._ &#9733;
 
 |  #  |      Title     |   Solutions   | Video  | Difficulty  | Tag                   
 |-----|----------------|---------------|--------|-------------|-------------
+|1344|[Angle Between Hands of a Clock](https://leetcode.com/problems/angle-between-hands-of-a-clock/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1344.java) | |Medium|Math|
 |1343|[Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold](https://leetcode.com/problems/number-of-sub-arrays-of-size-k-and-average-greater-than-or-equal-to-threshold/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1343.java) | |Medium|Array|
 |1342|[Number of Steps to Reduce a Number to Zero](https://leetcode.com/problems/number-of-steps-to-reduce-a-number-to-zero/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1342.java) | |Easy|Bit Manipulation|
 |1341|[The K Weakest Rows in a Matrix](https://leetcode.com/problems/the-k-weakest-rows-in-a-matrix/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1341.java) | |Easy||
diff --git a/src/main/java/com/fishercoder/solutions/_1344.java b/src/main/java/com/fishercoder/solutions/_1344.java
@@ -0,0 +1,44 @@
+package com.fishercoder.solutions;
+
+/**
+ * 1344. Angle Between Hands of a Clock
+ *
+ * Given two numbers, hour and minutes. Return the smaller angle (in sexagesimal units) formed between the hour and the minute hand.
+ *
+ * Example 1:
+ * Input: hour = 12, minutes = 30
+ * Output: 165
+ *
+ * Example 2:
+ * Input: hour = 3, minutes = 30
+ * Output: 75
+ *
+ * Example 3:
+ * Input: hour = 3, minutes = 15
+ * Output: 7.5
+ *
+ * Example 4:
+ * Input: hour = 4, minutes = 50
+ * Output: 155
+ *
+ * Example 5:
+ * Input: hour = 12, minutes = 0
+ * Output: 0
+ *
+ * Constraints:
+ * 1 <= hour <= 12
+ * 0 <= minutes <= 59
+ * Answers within 10^-5 of the actual value will be accepted as correct.
+ * */
+public class _1344 {
+    public static class Solution1 {
+        public double angleClock(int hour, int minutes) {
+            double minAngle = minutes * 360 / 60;
+            double hourAnglePart1 = hour != 12 ? (hour * 360) / 12 : 0;
+            double hourAnglePart2 = (double) (30 * minutes) / (double) 60;
+            double hourAngle = hourAnglePart1 + hourAnglePart2;
+            double preResult = Math.abs(minAngle - (hourAngle));
+            return preResult > 180 ? 360 - preResult : preResult;
+        }
+    }
+}
diff --git a/src/test/java/com/fishercoder/_1344Test.java b/src/test/java/com/fishercoder/_1344Test.java
@@ -0,0 +1,42 @@
+package com.fishercoder;
+
+import com.fishercoder.solutions._1344;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class _1344Test {
+    private static _1344.Solution1 solution1;
+
+    @BeforeClass
+    public static void setup() {
+        solution1 = new _1344.Solution1();
+    }
+
+    @Test
+    public void test1() {
+        assertEquals(165, solution1.angleClock(12, 30), 0);
+    }
+
+    @Test
+    public void test2() {
+        assertEquals(75, solution1.angleClock(3, 30), 0);
+    }
+
+    @Test
+    public void test3() {
+        assertEquals(155, solution1.angleClock(4, 50), 0);
+    }
+
+    @Test
+    public void test4() {
+        assertEquals(0, solution1.angleClock(12, 0), 0);
+    }
+
+    @Test
+    public void test5() {
+        assertEquals(76.5, solution1.angleClock(1, 57), 0);
+    }
+
+}
