feat(leetcode): add No.3024

3024.Type-of-Triangle.java

@@ -0,0 +1,35 @@
+// https://leetcode.com/problems/type-of-triangle/description/
+// algorithms
+// Easy (38.4%)
+// Total Accepted: 35.3K
+// Total Submissions: 91.9K
+
+
+class Solution {
+
+    public String triangleType(int[] nums) {
+        if (nums[0] + nums[1] <= nums[2]) {
+            return "none";
+        }
+
+        if (nums[1] + nums[2] <= nums[0]) {
+            return "none";
+        }
+
+        if (nums[2] + nums[0] <= nums[1]) {
+            return "none";
+        }
+
+        if ((nums[0] == nums[1]) && (nums[1] == nums[2])) {
+            return "equilateral";
+        }
+
+        Set<Integer> set = new HashSet<>();
+        set.add(nums[0]);
+        set.add(nums[1]);
+        set.add(nums[2]);
+
+        return set.size() == 2 ? "isosceles" : "scalene";
+    }
+
+}