refactor 16

fishercoder1534 · fishercoder1534 · commit 0cd0897ce4aa · 2021-10-21T16:50:51.000-07:00
diff --git a/src/main/java/com/fishercoder/solutions/_16.java b/src/main/java/com/fishercoder/solutions/_16.java
@@ -7,21 +7,13 @@ public class _16 {
     public static class Solution1 {
         public int threeSumClosest(int[] nums, int target) {
             Arrays.sort(nums);
-            int len = nums.length;
-            if (len < 3) {
-                int sum = 0;
-                for (int i : nums) {
-                    sum += i;
-                }
-                return sum;
-            }
             int sum = nums[0] + nums[1] + nums[2];
-            for (int i = 0; i < len - 2; i++) {
+            for (int i = 0; i < nums.length - 2; i++) {
                 int left = i + 1;
-                int right = len - 1;
+                int right = nums.length - 1;
                 while (left < right) {
                     int thisSum = nums[i] + nums[left] + nums[right];
-                    if (Math.abs(target - thisSum) < Math.abs(target - sum)) {
+                    if (Math.abs(thisSum - target) < Math.abs(sum - target)) {
                         sum = thisSum;
                         if (sum == target) {
                             return sum;
