题目链接:http://codeforces.com/contest/1288/problem/E 参考:https://www.cnblogs.com/pixel-Teee/p/12203233.html 题意:给定一个初始序列1,2,3…,n.m次操作,每次将 a i ( 1 < = a i < = n ) a_i(1
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题目链接:http://codeforces.com/contest/1288/problem/E 参考:https://www.cnblogs.com/pixel-Teee/p/12203233.html 题意:给定一个初始序列1,2,3…,n.m次操作,每次将 a i ( 1 < = a i < = n ) a_i(1
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