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第一次写线段树~~~挺简单的。。。。。因为只有30个变化 明显要用到未压缩吧。。。。。 其他的就是纯线段树了。。。。咕~~(╯﹏╰)b 给组数据吧 8 30 13 C 1 2 3 C 1 1 10 P 1 2 P 1 4 C 3 4 5 P 1 4 P 2 3 C 4 5 4 P 1 4 C 1 4 1 P 1 2 P 1 1 P 1 8 2 3 3 2 4 1 1 2 把这个数据过了，应该就能过了。。。。 Followed by:
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