{
  "model": "muse-glimmer:17gb",
  "created_at": "2026-08-10T12:10:37.208167126Z",
  "message": {
    "role": "assistant",
    "content": "```ruby\ndef merge_intervals(intervals)\n  return [] if intervals.nil? || intervals.empty?\n\n  sorted = intervals.sort_by { |s, _e| s }\n  merged = []\n  cur_start, cur_end = sorted[0]\n\n  sorted[1..].each do |start_i, end_i|\n    if start_i <= cur_end\n      cur_end = [cur_end, end_i].max\n    else\n      merged << [cur_start, cur_end]\n      cur_start, cur_end = start_i, end_i\n    end\n  end\n\n  merged << [cur_start, cur_end]\n  merged\nend\n```",
    "thinking": "Write a Ruby method merge_intervals(intervals). Merge exactly when next_start <= current_end. Do not merge merely adjacent intervals such as [1,4] and [5,7]. Input may be unsorted. Return only Ruby code.\n\nWe need return only Ruby code. Probably define method.\n\nMerge exactly when next_start <= current_end. So overlapping or touching? Actually <= means if next_start == current_end+? Wait condition: next_start <= current_end. If intervals [1,4] and [5,7], next_start=5, current_end=4 => 5<=4 false, so not merge. Good.\n\nIf [1,4] and [4,7], next_start=4 <=4 true -> merge to [1,7]. That's overlapping at point.\n\nImplementation: sort by start. Iterate.\n\nReturn merged array.\n\nEdge cases: empty?\n\nProvide code.\n\nProbably:\n\ndef merge_intervals(intervals)\n  return [] if intervals.empty?\n  sorted = intervals.sort_by { |s,e| s }\n  merged = []\n  cur_start, cur_end = sorted[0]\n  ...\nend\n\nReturn only Ruby code. No explanation? Probably just code.\n\nEnsure method name merge_intervals.\n\nOutput only Ruby code.\n\nLet's produce final."
  },
  "done": true,
  "done_reason": "stop",
  "total_duration": 10532441935,
  "load_duration": 181820527,
  "prompt_eval_count": 82,
  "prompt_eval_duration": 154538000,
  "eval_count": 402,
  "eval_duration": 10182027000,
  "wall_seconds": 10.53668329399079,
  "decode_tps": 39.48133313730164,
  "prompt_tps": 530.6138296082516,
  "grader": {
    "pass": true,
    "stdout": "PASS\n",
    "stderr": "",
    "code": "def merge_intervals(intervals)\n  return [] if intervals.nil? || intervals.empty?\n\n  sorted = intervals.sort_by { |s, _e| s }\n  merged = []\n  cur_start, cur_end = sorted[0]\n\n  sorted[1..].each do |start_i, end_i|\n    if start_i <= cur_end\n      cur_end = [cur_end, end_i].max\n    else\n      merged << [cur_start, cur_end]\n      cur_start, cur_end = start_i, end_i\n    end\n  end\n\n  merged << [cur_start, cur_end]\n  merged\nend"
  }
}