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查询Tags标签： differences，共有 3条记录-
TopCoder 17403 See All Differences
这题和 https://atcoder.jp/contests/abc189/tasks/abc189_f 是相似的。 首先我们设\(f(mask,number)\)表示考虑若干个数，目前出现的差在\(mask\)中，最后一个数是\(number\)时，数列的期望长度。 但是我们发现这样比较难以转移，因为我们不知道转移过来的状态是否是合法…
2022/7/7 23:20:13 人评论 次浏览 -
376. Wiggle Subsequence
package LeetCode_376/*** 376. Wiggle Subsequence* https://leetcode.com/problems/wiggle-subsequence/* A wiggle sequence is a sequence where the differences between successive numbers strictly alternate between positive and negative.* The first differen…
2021/8/1 23:35:55 人评论 次浏览 -
376. Wiggle Subsequence
package LeetCode_376/*** 376. Wiggle Subsequence* https://leetcode.com/problems/wiggle-subsequence/* A wiggle sequence is a sequence where the differences between successive numbers strictly alternate between positive and negative.* The first differen…
2021/8/1 23:35:55 人评论 次浏览
