Google Question: Given an array, a fall is defined as arr[i] - arr[j] where i <= j. You need to find out the maximum fall in the array given.

int main()
{
    int arr[] = { 1, 7, 3, 2, 9, 10, 7, 4};
    int length = sizeof(arr) / sizeof(*arr), maxFall = 0;
    for(int i =1, elem = arr[0], fall = 0; i<length; ++i)
            ((elem < arr[i]) && (elem = arr[i],1)) || (((fall=elem-arr[i]) > maxFall)
            && (maxFall = fall));
    cout<<"MaxFall = "<<maxFall<<'\n';
    return 0;
}