Stamp gates: Total receipt
Inputs
readings is a list of integers (numbers with no decimal part). It may be empty, and numbers may repeat unless task 1 says otherwise.
Your tasks
- Create a list
clamped. Readreadingsfrom left to right. Change each number below 0 to 0. Keep every other number as it is. Put the numbers inclampedin the same order. - Add up every number in
clamped. Store the sum intotal. - Complete
stampGatesTotalReceiptso it returnstotal. Return it, do not print it.
Example
If readings is [7, 6, -8, 6, 9], then clamped is [7, 6, 0, 6, 9] and stampGatesTotalReceipt returns 28.
Rules
- If
clampedis empty,totalis 0.
Test data
TEST DATA 1: readings is [10, 16, 0, -11, 10].
TEST DATA 2: readings is [-2, 7, 7, 7].
Examples
Input: readings = [10,16,0,-11,10] Output: 36
clamped is [10, 16, 0, 0, 10]. Add its numbers to get 36. Return 36.
Input: readings = [-2,7,7,7] Output: 21
clamped is [0, 7, 7, 7]. Add its numbers to get 21. Return 21.
Input: readings = [] Output: 0
clamped is []. Add its numbers to get 0. Return 0.
Input limits
- 0 <= input size <= 64.
- Answers fit in a signed 32-bit integer: -2,147,483,648 through 2,147,483,647.
- Input numbers have no decimal part. They range from -1,000,000 to 1,000,000. Follow any extra input rules in task 1.
Efficiency goal
Big-O describes how the work or memory needed grows as the input gets larger.
Efficiency goal: time O(n); extra memory, including the helper list, O(n). n is the input length. These labels describe how work and memory grow with the input.
Practice focus
Build clamped first, then return exactly what the tasks ask for. Follow the order, keep repeated values when the rule says so, and check the empty case.