← Questions
Range sum query (immutable)
0
I was asked this
No reports yet. Sign in to say where you were asked it.
Preprocess an integer array so that the sum of any range [i, j] is answered in constant time. Build prefix sums once and design the function so it can be reused across many queries.
No official answer yet. Write yours on the right and run it.
Nothing published yet.
Sign in to submit your code; every attempt is kept here.
Write and test your solution herePython in your browser, the question's tests level by level, every submission kept for you.Sign in to start coding