added program to find second largest/smallest element in array using c++

Cpp/second-large_small-array_element.cpp

@@ -0,0 +1,60 @@
+#include <iostream>
+using namespace std;
+
+int getmax( int a[], int n){
+    int max = 0, max2 = 0;
+    for( int i=0; i<n; i++)
+    {
+        if( a[i] > max )
+        {
+            max = a[i];
+        }
+    }
+    for( int i=0; i<n; i++)
+    {
+        if( a[i] != max )
+        { if(a[i] > max2)
+           max2 = a[i];
+        }
+    }
+
+    return max2;
+}
+
+int getmin( int a[], int n){
+    int min = a[0], secondmin  = a[0];
+       for( int i=1; i<n; i++)
+    {
+        if( a[i] < min )
+           min = a[i];
+    }
+    cout<<min<<endl;
+    for( int i=1; i<n; i++)
+    {
+        if( a[i] != min )
+        { if(a[i] < secondmin)
+           secondmin = a[i];
+        }
+        if(secondmin == min)
+        {
+            secondmin = a[i++];
+            i = 1;
+        }
+    }
+    return secondmin;
+}
+
+int main()
+{
+   int n;
+   cin>>n;
+   int a[n];
+   for( int i=0; i<n; i++)
+   {
+       cin>>a[i];
+   }
+   int sec_max = getmax( a, n);
+   int sec_min = getmin( a, n);
+   cout<<"Second largest element of array is :"<<sec_max<<endl;
+   cout<<"Second smallest element of array is :"<<sec_min<<endl;
+}