题目:http://codeforces.com/contest/1300/problem/E 题意:给定n个数 ( 1 < = n < = 1 e 6 ) (1
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题目:http://codeforces.com/contest/1300/problem/E 题意:给定n个数 ( 1 < = n < = 1 e 6 ) (1
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