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;
}

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Arrays are fundamental in data structures, allowing efficient storage and manipulation of elements. Mastering array operations like reversals, sorting, and searching is crucial for problem-solving in coding.

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Here is my solution in java

int length=a.size();
    List<Integer> b=new ArrayList<>();
    int i=0;
    int j=length-1;
    while(j>=0){
        b.add(i, a.get(j));
        i++;
        j--;
    }
    
    return b;

//java 15 code

    public static List<Integer> reverseArray(List<Integer> a) {
        for(int i=0;i<a.size()/2;i++){
    int j=a.size()-1-i;
   Collections.swap(a, i, j);

}
return a;

}