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Given a list of numbers with only 3 unique numbers(1, 2, 3), sort the list in O(n) time. Plus sort the array using constant space O(1).
Example:
Input: [3, 3, 2, 1, 3, 2, 1]
Output: [1, 1, 2, 2, 3, 3, 3]
Here the solution i made (is no O(1) space and have empty spaces spaces in the array..):
...
Of course you can.
The save() method can accept a callback so you can get the _id field of the saved document.
One way of do it would be:
newItem.save((err, itemSaved) => {
if(err) {
next(err);
}
const itemId = itemSaved._id;
res.redirect('/results/' + itemId);
});
Ho...
Alguien tiene el script de este juego con esas instrucciones o similar?
