void countApplesAndOranges(int s, int t, int a, int b, vector<int> apples, vector<int> oranges) {
    // get the coordinates of the fallen fruits and check whether they are in [s, t]
    std::transform(apples.begin(), apples.end(), apples.begin(),
    [a,s,t] (int d) {
        return (a + d >= s && a + d <= t) ? 1 : 0;     
    });
    std::transform(oranges.begin(), oranges.end(), oranges.begin(),
    [b,s,t] (int d) {
       return (b + d >= s && b + d <= t) ? 1 : 0; 
    });
    
    // then just sum up the elements and print the result
    std::cout << std::accumulate(apples.begin(), apples.end(), 0) << std::endl;
    std::cout << std::accumulate(oranges.begin(), oranges.end(), 0) << std::endl;
}