03 2019 档案

摘要:解题过程 开场shl过B,C,然后lfw写J,J WA了以后shl写A,但是因为OJ上空间开小WA了,而不是MLE?,J加了特判过了。之后一直在检查A错哪了,直到qt发现问题改了空间,浪费许多时间,但是拿到A一血,shl和byf推出K,不会写组合数而抄了板子, 但是WA, shl想出E题拿到一血了, 阅读全文
posted @ 2019-03-25 16:57 StarHai 阅读(726) 评论(0) 推荐(0) 编辑
摘要:It's said that Aladdin had to solve seven mysteries before getting the Magical Lamp which summons a powerful Genie. Here we are concerned about the fo 阅读全文
posted @ 2019-03-13 16:48 StarHai 阅读(346) 评论(0) 推荐(0) 编辑
摘要:A.Regular bracket sequence A string is called bracket sequence if it does not contain any characters other than "(" and ")". A bracket sequence is cal 阅读全文
posted @ 2019-03-09 16:39 StarHai 阅读(730) 评论(0) 推荐(1) 编辑
摘要:A : Be Positive 题目地址:https://codeforces.com/problemset/problem/1130/A 题解:让你求是否满足一个d使得数列长为n的a数组的每个数除以d以后,所得数列正数的数量大于ceil(n);(除以后四舍五入,0不是正数) 注意d为负数的情况 参 阅读全文
posted @ 2019-03-04 21:49 StarHai 阅读(387) 评论(0) 推荐(0) 编辑

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