Updated Summary Ranges.java

varunu28 · varunu28 · commit 87898047e5d7 · 2023-06-12T06:41:03.000-07:00
diff --git a/Easy/Summary Ranges.java b/Easy/Summary Ranges.java
@@ -1,18 +1,16 @@
 class Solution {
-  public List<String> summaryRanges(int[] nums) {
-    List<String> result = new ArrayList<>();
-    int idx = 0;
-    int n = nums.length;
-    while (idx < n) {
-      int start = nums[idx];
-      int end = start;
-      idx++;
-      while (idx < n && nums[idx] == end + 1) {
-        end = nums[idx];
-        idx++;
-      }
-      result.add(start == end ? String.valueOf(start) : (start + "->" + end));
+    public List<String> summaryRanges(int[] nums) {
+        List<String> result = new ArrayList<>();
+        int idx = 0;
+        while (idx < nums.length) {
+            int startIdx = idx;
+            int endIdx = idx;
+            idx++;
+            while (idx < nums.length && nums[idx] - nums[idx - 1] == 1) {
+                endIdx = idx++;
+            }
+            result.add(startIdx == endIdx ? String.valueOf(nums[startIdx]) : nums[startIdx] + "->" + nums[endIdx]);
+        }
+        return result;
     }
-    return result;
-  }
 }
