Coding-Hard-Trie-Autocomplete

The model receives the prompt (and optional system message). The run uses scorer javascript_function_tests with the JSON configuration below. Pass/fail and partial credit are determined entirely by that scorer against the model output; no human grading.

Return JSON only with a string field named code. The code must be dependency-free JavaScript, define the requested function in the top level or module.exports, and include no markdown, imports, require, timers, network, filesystem, eval, or placeholders.

Implement function trieAutocomplete(words, prefix). Build a trie from the words array, then return all words that start with the given prefix, sorted lexicographically. Return an empty array if no words match.

Your JSON must look like {"code":"function trieAutocomplete(...) { ... }"}.

{
  "function_name": "trieAutocomplete",
  "timeout_ms": 100,
  "test_pass_threshold": 1,
  "partial_credit_threshold": 0.5,
  "tests": "[hidden executable tests]"
}