International Business
思路：倒序遍历 2 倍长度 + 取模模拟循环 + 单调栈。用 i % len 映射到真实索引，仅当 i < len 时记录答案。
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And Office for National Statistics surveys shows only one in five patients believe services have got better in the past year. The majority say they have neither improved or got worse.，详情可参考safew官方下载
《甄嬛傳》馬拉松：為何成為台灣年輕人過年的「文化習俗」？
She started after her brother Peter died from a brain tumour in 1989 when he was just 24.