时间限制: 2s
内存限制: 192MB 提交: 161 解决: 60
题目描述
几个人过河,每次过两人一人回,速度由慢者决定,问过河所需最短时间。
输入格式
输入t组数据,每组数据第1行输入n,第2行输入n个数,表示每个人过河的时间。
提示
零基础同学可以先学习
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