Problem: Dot Product of Two Sparse Vectors

med

30 min

Explore how to implement a SparseVector class that efficiently computes the dot product between two sparse vectors. Understand how storing mostly zero values differently improves performance and practice coding your solution in a setup-free environment.

Statement

We must calculate the dot product of two given sparse vectors, nums1 and nums2.

Create a SparseVector class:

Constructor(): Initializes the object with the vector.
DotProduct(): Computes the dot product between the current instance of the vector and the other.

Note: A sparse vector is a vector that contains mostly zero values. Therefore, we should store the sparse vectors and calculate the dot product accordingly.

Constraints:

$n =$ nums1.length $=$ nums2.length
$1 \leq n \leq 10^3$
$0 \leq$ nums1[i], nums2[i] $\leq 100$

Problem: Dot Product of Two Sparse Vectors

med

30 min

Statement

We must calculate the dot product of two given sparse vectors, nums1 and nums2.

Create a SparseVector class:

Constructor(): Initializes the object with the vector.
DotProduct(): Computes the dot product between the current instance of the vector and the other.

Note: A sparse vector is a vector that contains mostly zero values. Therefore, we should store the sparse vectors and calculate the dot product accordingly.

Constraints:

$n =$ nums1.length $=$ nums2.length
$1 \leq n \leq 10^3$
$0 \leq$ nums1[i], nums2[i] $\leq 100$

Problem: Dot Product of Two Sparse Vectors

Statement

Examples

Understand the problem

Figure it out!

Try it yourself

Problem: Dot Product of Two Sparse Vectors

Statement

Examples

Understand the problem

Figure it out!

Try it yourself