Debug the following code:

int sum(int arr[],int n)

{

int a=0;

int b=0,c;

for(int i=1;i<n;i++)

{

c=min(a,b);

a=b;

b=c;

}

return max(a,b);

}

Input :

The first line has an integer T, the number of test cases.

Then for each test case, the first line indicates the no: of elements in an array. Second line denotes the elements of the array

Output:

An integer

Sample input

2
3
86 77 15 
3
35 86 92 

Sample output:

101
127