largest int in the array[ ]

 #include <iostream>

int getlargest(int arr[], int n)

{

int res = 0;

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

{

if (arr[i] > arr[res])

{

res = i;

}

}

return res;

}

int main()

{

int arr[] = { 1, 19, 12, 100 };

int size = 4;

std::cout << getlargest(arr, size) << std::endl;

std::cin.get();

}