here's the example of using lists comprehension: data = [1, 2, 3, 4, 5, 6, 7, 8, 9] ids = [2, 4, 6] # ids of required values in the list ... ... <看更多>

Fancy indexing is like the simple indexing we've already seen, but we pass arrays of indices in place of single scalars. This allows us to very quickly access ... ... <看更多>

Minor feedback about your existing solution: add PEP484 type hints; enumerate(arr[1:]) instead of over the whole array; no need to enclose ... ... <看更多>