{
  "summary": {
    "method": "IO",
    "model": "qwen2.5:32b",
    "task": "cmath",
    "samples": 3,
    "correct": 1,
    "accuracy": 0.3333,
    "avg_time_s": 0.51
  },
  "details": [
    {
      "question": "已知函数 $f(x) = 2x^2 - 4x + 1$，求 $f(x)$ 的最小值。",
      "expected": "-1",
      "predicted": "-1",
      "full_response": "-1",
      "correct": true,
      "time_s": 0.5,
      "tokens": 1
    },
    {
      "question": "在等差数列 $\\{a_n\\}$ 中，$a_1 = 3$，$a_3 + a_5 = 22$，求 $a_7$ 的值。",
      "expected": "25",
      "predicted": "15",
      "full_response": "15",
      "correct": false,
      "time_s": 0.47,
      "tokens": 1
    },
    {
      "question": "从 3 名男生和 2 名女生中选出 2 人参加志愿者活动，求选出的两人恰好是一男一女的概率。",
      "expected": "3/5",
      "predicted": "0.6",
      "full_response": "0.6",
      "correct": false,
      "time_s": 0.56,
      "tokens": 2
    }
  ]
}