Add solution for Summary Ranges

python/0228-Summary-Ranges.py

@@ -0,0 +1,23 @@
+class Solution:
+    def summaryRanges(self, nums: List[int]) -> List[str]:
+        result = []
+        n = len(nums)
+        if n == 0:
+            return result
+
+        # Pointer to the start of the current range
+        start = 0
+
+        for i in range(1, n + 1):  # Iterate until the end of the array
+            # If we're at the end of the array or the range breaks
+            if i == n or nums[i] != nums[i - 1] + 1:
+                # Single number range
+                if start == i - 1:
+                    result.append(str(nums[start]))
+                # Continuous range
+                else:
+                    result.append(f"{nums[start]}->{nums[i - 1]}")
+                # Update start for the next range
+                start = i
+
+        return result