// 步骤3：遍历排序后的位置，用单调栈判断独立车队
Verified using verify.py with --seed 2025，推荐阅读爱思助手下载最新版本获取更多信息
，推荐阅读爱思助手下载最新版本获取更多信息
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In early 2025, baby Amy was born through the first living womb donation in the UK. Her mother received her older sister's womb in a transplant operation in January 2023. Her sister had already had two children of her own.，这一点在Line官方版本下载中也有详细论述