Here is my c++ solution, you can watch video explanation here : https://youtu.be/Z_CYzW_sQAE

Solution 1

vector<int> reverseArray(vector<int> a) {
  reverse(a.begin(), a.end());
  return a;
}

Solution 2

vector<int> reverseArray(vector<int> a) {
   vector<int> result; 
    for(int i = a.size() - 1; i >= 0; i--){
        result.push_back(a[i]);
    }
    return result;
}

who can help me with the code using java

Extremelly easy (Perl):

sub reverseArray {
    my $arr = shift;
    return reverse(@$arr);

}

def reverse_array(): a = list(map(int, input("Enter numbers separated by spaces: ").split())) a_reversed = list(reversed(a)) return a_reversed

Java8

public static List<Integer> reverseArray(List<Integer> a) {
// Write your code here
    Collections.reverse(a);
    return a;
}