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Workflows
Coding workflows · Minimum spanning forests
03
A concrete starting point
Find a minimum spanning forest for up to 64 nodes and 1024 integer-weighted edges with weights within ±10^9. Test disconnected nodes, parallel edges, self-loops and deterministic ties, rejecting invalid endpoints or Boolean values without changing the input.
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.
Minimum spanning forests
A concrete starting point
def spanning_forest(count, edges):
if type(count) is not int or not 0 <= count <= 64 or type(edges) is not list or len(edges) > 1024:
raise ValueError("forest.input")
ordered = []
for edge in edges:
if type(edge) not in (list, tuple) or len(edge) != 3 or any(type(x) is not int for x in edge):
raise ValueError("forest.edge")
a, b, weight = edge
if not 0 <= a < count or not 0 <= b < count or abs(weight) > 10**9:
raise ValueError("forest.bounds")
ordered.append((weight, min(a, b), max(a, b)))
parent = list(range(count))
def root(node):
while parent[node] != node:
parent[node] = parent[parent[node]]
node = parent[node]
return node
selected, total = [], 0
for weight, a, b in sorted(ordered):
x, y = root(a), root(b)
if x != y:
parent[x] = y
selected.append((a, b, weight))
total += weight
return total, selected
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.
