Simpsons' Hidden Talents Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 4597 Accepted Submission(s): 1671 Problem Description Homer: Marge, I just figured out a way to discover some of the…
F. Make k Equal 题目链接 题意 长度为n的序列,每次可以选择一个最大的数字将其减一或者选择一个最小的数字将其加一,问最少操作多少次可以使得序列中至少存在 k 个一样的数字 分析 官方题解:http://codeforces.com/blog/entry/75246 可以想到最后一样的数字,一定是在原序列里面出现的,所以将原数组离散化之后,枚举最后一样的数字,并努力把它凑够 k 个.如何凑?借助左侧或者右侧的数字.只要借助了某侧的数字,那么这一侧全部的数字都要先挪动它旁边的那个位置…
During the War of Resistance Against Japan, tunnel warfare was carried out extensively in the vast areas of north China Plain. Generally speaking, villages connected by tunnels lay in a line. Except the two at the ends, every village was directly con…