GCD of n numbers program

GCD_of_n_numbers.cpp

@@ -0,0 +1,20 @@
+#include <iostream>
+using namepsace std;
+int main()
+{
+  cin >> n;
+  int a[n];
+  int i,j,gcd;
+  for(i=0;i<n;i++)
+    cin >> a[i];
+  j=1;
+  gcd=a[0];
+  while(j<n)
+  {
+    if(a[j]%gcd==0)
+     j++;
+    else
+     gcd=a[j]%gcd;
+  }
+  cout << "GCD of entered n numbers:" << gcd;
+}