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Workflows
Coding workflows · Weighted ticket selection
03
A concrete starting point
Map an integer ticket to an index in a nonnegative integer weight list. Check zero-weight entries and cumulative boundaries, rejecting an empty total or a ticket outside the total without drawing random numbers.
Define the change
Describe the input, expected output and boundaries that must stay intact.
Inspect the work
Review the proposed edits and any commands before relying on their result.
Check the outcome
Compare actual behavior with the expected result. If a check fails, investigate it before applying more changes.
Weighted ticket selection
A concrete starting point
from bisect import bisect_right
def ticket_index(weights, ticket):
if any(type(w) is not int or w < 0 for w in weights):
raise ValueError("nonnegative integer weights")
bounds, total = [], 0
for weight in weights:
total += weight
bounds.append(total)
if type(ticket) is not int or not 0 <= ticket < total:
raise ValueError("ticket outside total")
return bisect_right(bounds, ticket)The example is a starting point for a real project, not a claim that generated code is already tested. Adjust paths, dependencies and expected behavior to match your application.