Is the expected answer wrong?


  • 2
    Z

    My submission failed for this test case, but unless I misunderstood the question, I think mine is actually the expected output?

    Submission Result: Wrong Answer

    Input: {1,2,3,4}, 1, 4
    Output: {4,2,3,1}
    Expected: {4,3,2,1}


  • 5
    M

    Your problem is that you switch the nodes at indices 1 and 4, while what you are supposed to be doing is reversing the list between those two nodes, inclusive. Therefore, 1->2->3->4 becomes 4->3->2->1.


  • 0
    Z

    I see, thanks mike3. The example given in the question is a little confusing :)


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