# 人工智能课程 15：Python 3 标准库教学示例
# 无外部网络调用；修改输入后可观察结果。
cases = [('普通', True), ('普通', True), ('普通', True), ('无答案', False), ('无答案', False), ('越权', False)]
for group in ['普通', '无答案', '越权']:
    results = [passed for kind, passed in cases if kind == group]
    rate = sum(results) / len(results) if results else 0
    print(group, f'{sum(results)}/{len(results)}', f'{rate:.0%}')