my changes

Arrays Introduction.cpp

@@ -0,0 +1,34 @@
+//https://www.hackerrank.com/challenges/arrays-introduction/submissions/code/125864233
+
+#include <cmath>
+#include <cstdio>
+#include <vector>
+#include <iostream>
+#include <algorithm>
+using namespace std;
+
+
+int main() {
+    int n,i,j,temp;
+    int arr[1000];
+    cin>>n;
+    for(i=0;i<n;i++)
+    {
+        cin>>arr[i];
+    }
+    j=i-1;
+    i=0;
+    while(i<j)
+    {
+        temp=arr[i];
+        arr[i]=arr[j];
+        arr[j]=temp;
+        i++;
+        j--;
+    }
+    for(i=0; i<n; i++)
+    {
+        cout<<arr[i]<<" ";
+    }
+    return 0;
+}