Create 2200. Find All K-Distant Indices in an Array

2200. Find All K-Distant Indices in an Array

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+class Solution {
+public:
+    vector<int> findKDistantIndices(vector<int>& nums, int key, int k) 
+    {
+        vector<int> ans;
+        int n = nums.size(), last_index = 0;
+        for(int j = 0; j < n; j++)
+        {
+            if(nums[j] == key) 
+            {
+                int start = max(last_index, j - k);
+                int end = min(j + k + 1, n);
+                for(int i = start; i < end; i++)
+                    ans.push_back(i);
+                last_index = end;
+            }
+        }
+        return ans;
+    }
+};