Create readme.md

nisarg0 · web-flow · commit 1214f458b5b6 · 2024-08-07T15:05:18.000+05:30
diff --git a/Arrays/readme.md b/Arrays/readme.md
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+Deletion in a vector takes O(1) time if order doesn't matter.
+Delete ith indexed value.
+
+```
+swap(arr[i], arr[n-1]);
+arr.pop_back();
+```
