Codeforces961E Tufurama
摘要:题意:输入一个序列,查询满足条件的(x, y)点对使得a[x]>=y&&a[y]>=x&&x
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posted @ 2018-04-07 19:44
posted @ 2018-04-07 19:44
posted @ 2018-01-23 19:33
posted @ 2016-12-08 10:48