Ahmed Rabie El Bohoty..... IT : Share Info..Share Help

1. Write a function that accepts an array of non-negative integers and returns the second largest integer in the array. Return -1 if there is no second largest.

If you are programming in Java or C#, the signature of the function is 

int f(int[ ] a)

If you are programming in C or C#, the signature of the function is 

int f(int a[ ], int len) where len is the number of elements in a.

First answer public static void main()

{

a1(new int[]{1, 2, 3, 4});

a1(new int[]{4, 1, 2, 3});

a1(new int[]{1, 1, 2, 2});

a1(new int[]{1, 1});

a1(new int[]{1});

a1(new int[]{});

}

static int a1(int[] a)

{

int max1 = -1;

int max2 = -1;

for (int i=0; i

{

if (a[i] > max1)

{

max2 = max1;

max1 = a[i];

}

else if (a[i] != max1 && a[i] > max2)

max2 = a[i];

}

return max2;

}