摘要：SUBJECT T1： https://www.cnblogs.com/Little-Turtle--QJY/p/13451509.html T2： https://www.cnblogs.com/Little-Turtle--QJY/p/13451516.html SUPPLEMENT 区间DP 阅读全文

摘要：Input Input is given from Standard Input in the following format: N A1 A2 … An Output Print the number of the pairs of integers l and r(1 <= l <= r <= 阅读全文

摘要：A sequence of N positive integers (10 < N < 100 000), each of them less than or equal 10000, and a positive integer S (S < 100 000 000) are given. Wri 阅读全文