4.9 KiB
id | title | challengeType | forumTopicId | dashedName |
---|---|---|---|---|
a56138aff60341a09ed6c480 | Atualização de inventário | 5 | 16019 | inventory-update |
--description--
Compare e atualize o inventário armazenado em um array 2D contrastando-o com um segundo array 2D de uma nova entrega. Atualize as quantidades atuais de itens do inventário (em arr1
). Se um item não puder ser encontrado, adicione o novo item e sua quantidade no array do inventário. O array do inventário retornado deve estar em ordem alfabética por item.
--hints--
A função updateInventory
deve retornar um array.
assert.isArray(
updateInventory(
[
[21, 'Bowling Ball'],
[2, 'Dirty Sock'],
[1, 'Hair Pin'],
[5, 'Microphone']
],
[
[2, 'Hair Pin'],
[3, 'Half-Eaten Apple'],
[67, 'Bowling Ball'],
[7, 'Toothpaste']
]
)
);
updateInventory([[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"]])
deve retornar um array de tamanho 6.
assert.equal(
updateInventory(
[
[21, 'Bowling Ball'],
[2, 'Dirty Sock'],
[1, 'Hair Pin'],
[5, 'Microphone']
],
[
[2, 'Hair Pin'],
[3, 'Half-Eaten Apple'],
[67, 'Bowling Ball'],
[7, 'Toothpaste']
]
).length,
6
);
updateInventory([[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"]])
deve retornar [[88, "Bowling Ball"], [2, "Dirty Sock"], [3, "Hair Pin"], [3, "Half-Eaten Apple"], [5, "Microphone"], [7, "Toothpaste"]]
.
assert.deepEqual(
updateInventory(
[
[21, 'Bowling Ball'],
[2, 'Dirty Sock'],
[1, 'Hair Pin'],
[5, 'Microphone']
],
[
[2, 'Hair Pin'],
[3, 'Half-Eaten Apple'],
[67, 'Bowling Ball'],
[7, 'Toothpaste']
]
),
[
[88, 'Bowling Ball'],
[2, 'Dirty Sock'],
[3, 'Hair Pin'],
[3, 'Half-Eaten Apple'],
[5, 'Microphone'],
[7, 'Toothpaste']
]
);
updateInventory([[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]], [])
deve retornar [[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]]
.
assert.deepEqual(
updateInventory(
[
[21, 'Bowling Ball'],
[2, 'Dirty Sock'],
[1, 'Hair Pin'],
[5, 'Microphone']
],
[]
),
[
[21, 'Bowling Ball'],
[2, 'Dirty Sock'],
[1, 'Hair Pin'],
[5, 'Microphone']
]
);
updateInventory([], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"]])
deve retornar [[67, "Bowling Ball"], [2, "Hair Pin"], [3, "Half-Eaten Apple"], [7, "Toothpaste"]]
.
assert.deepEqual(
updateInventory(
[],
[
[2, 'Hair Pin'],
[3, 'Half-Eaten Apple'],
[67, 'Bowling Ball'],
[7, 'Toothpaste']
]
),
[
[67, 'Bowling Ball'],
[2, 'Hair Pin'],
[3, 'Half-Eaten Apple'],
[7, 'Toothpaste']
]
);
updateInventory([[0, "Bowling Ball"], [0, "Dirty Sock"], [0, "Hair Pin"], [0, "Microphone"]], [[1, "Hair Pin"], [1, "Half-Eaten Apple"], [1, "Bowling Ball"], [1, "Toothpaste"]])
deve retornar [[1, "Bowling Ball"], [0, "Dirty Sock"], [1, "Hair Pin"], [1, "Half-Eaten Apple"], [0, "Microphone"], [1, "Toothpaste"]]
.
assert.deepEqual(
updateInventory(
[
[0, 'Bowling Ball'],
[0, 'Dirty Sock'],
[0, 'Hair Pin'],
[0, 'Microphone']
],
[
[1, 'Hair Pin'],
[1, 'Half-Eaten Apple'],
[1, 'Bowling Ball'],
[1, 'Toothpaste']
]
),
[
[1, 'Bowling Ball'],
[0, 'Dirty Sock'],
[1, 'Hair Pin'],
[1, 'Half-Eaten Apple'],
[0, 'Microphone'],
[1, 'Toothpaste']
]
);
--seed--
--seed-contents--
function updateInventory(arr1, arr2) {
return arr1;
}
// Example inventory lists
var curInv = [
[21, "Bowling Ball"],
[2, "Dirty Sock"],
[1, "Hair Pin"],
[5, "Microphone"]
];
var newInv = [
[2, "Hair Pin"],
[3, "Half-Eaten Apple"],
[67, "Bowling Ball"],
[7, "Toothpaste"]
];
updateInventory(curInv, newInv);
--solutions--
function updateInventory(arr1, arr2) {
arr2.forEach(function(item) {
createOrUpdate(arr1, item);
});
// All inventory must be accounted for or you're fired!
return arr1;
}
function createOrUpdate(arr1, item) {
var index = -1;
while (++index < arr1.length) {
if (arr1[index][1] === item[1]) {
arr1[index][0] += item[0];
return;
}
if (arr1[index][1] > item[1]) {
break;
}
}
arr1.splice(index, 0, item);
}
// Example inventory lists
var curInv = [
[21, 'Bowling Ball'],
[2, 'Dirty Sock'],
[1, 'Hair Pin'],
[5, 'Microphone']
];
var newInv = [
[2, 'Hair Pin'],
[3, 'Half-Eaten Apple'],
[67, 'Bowling Ball'],
[7, 'Toothpaste']
];
updateInventory(curInv, newInv);