When sorting an array of objects or structures, one must decide which data item to sort on.

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When sorting an array of objects or structures, one must decide which data item to sort on. This is because different data items may have different values and priorities, and sorting on one item may result in a different order than sorting on another item. Therefore, the sorting algorithm needs to know which data item to compare and use as the basis for sorting.

When Sorting an Array of Objects or Structures, One Must