* 时间复杂度：O(n)，空间复杂度：O(n)
After six games at the tournament, Buttler’s top score is 26, against Nepal in England’s opener, and in their past four matches he has contributed three, three, seven and two. It is his worst run in international T20s since he followed 13 in his first ever innings with five successive single-digit scores, between February and September 2012.
。关于这个话题，91视频提供了深入分析
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