随笔分类 -  Codeforce

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Codeforces 821E Okabe and El Psy Kongroo（矩阵快速幂）
摘要：E. Okabe and El Psy Kongroo time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output E. Okabe and 阅读全文
posted @ 2017-09-14 17:43 Blackops 阅读(559) 评论(0) 推荐(0)
Codeforces 433 Div.2（A、B、C、D）
摘要：A. Fraction 暴力遍历1-1000，取组成的真分数比值最大且分子分母gcd为1时更新答案 代码： B. Maxim Buys an Apartment 最好的情况是尽量放中间，每一个房子都可以造成两个good位置，这样一共有n/3个位置，如果k<=n/3则答案就是k*3，否则把剩余的位置先 阅读全文
posted @ 2017-09-07 12:41 Blackops 阅读(176) 评论(0) 推荐(0)
Codeforces 846D Monitor（简单二分+二维BIT）
摘要：D. Monitor time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output D. Monitor time limit per tes 阅读全文
posted @ 2017-09-06 21:15 Blackops 阅读(560) 评论(0) 推荐(0)
CF 787D Legacy（线段树思想构图+最短路）
摘要：D. Legacy time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output D. Legacy time limit per test 阅读全文
posted @ 2017-09-05 13:13 Blackops 阅读(650) 评论(0) 推荐(0)
Codeforces 165E Compatible Numbers（二进制+逆序枚举）
摘要：E. Compatible Numbers time limit per test 4 seconds memory limit per test 256 megabytes input standard input output standard output E. Compatible Numb 阅读全文
posted @ 2017-08-16 16:05 Blackops 阅读(257) 评论(0) 推荐(0)
Codeforces 672D Robin Hood（二分好题）
摘要：D. Robin Hood time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output D. Robin Hood time limit pe 阅读全文
posted @ 2017-08-16 14:21 Blackops 阅读(284) 评论(0) 推荐(0)
Educational Codeforces Round 22 E. Army Creation（分块好题）
摘要：E. Army Creation time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output E. Army Creation time l 阅读全文
posted @ 2017-06-08 20:50 Blackops 阅读(306) 评论(0) 推荐(0)
Codeforces 785D Anton and School - 2 （组合数相关公式+逆元）
摘要：D. Anton and School - 2 time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output D. Anton and Sch 阅读全文
posted @ 2017-04-11 17:39 Blackops 阅读(226) 评论(0) 推荐(2)
Codeforces Round #402 (Div. 2) D. String Game（二分答案水题）
摘要：D. String Game time limit per test 2 seconds memory limit per test 512 megabytes input standard input output standard output D. String Game time limit 阅读全文
posted @ 2017-02-27 21:37 Blackops 阅读(340) 评论(0) 推荐(0)
Codeforces Round #367 (Div. 2) D. Vasiliy's Multiset（可持久化Trie）
摘要：D. Vasiliy's Multiset time limit per test 4 seconds memory limit per test 256 megabytes input standard input output standard output Author has gone ou 阅读全文
posted @ 2016-11-30 22:19 Blackops 阅读(365) 评论(0) 推荐(0)
Codeforces Round #375 (Div. 2)——D. Lakes in Berland（DFS连通块）
摘要：D. Lakes in Berland time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output D. Lakes in Berland 阅读全文
posted @ 2016-10-21 08:51 Blackops 阅读(311) 评论(0) 推荐(0)
Codeforeces 617E XOR and Favorite Number（莫队+小技巧）
摘要：E. XOR and Favorite Number time limit per test 4 seconds memory limit per test 256 megabytes input standard input output standard output E. XOR and Fa 阅读全文
posted @ 2016-09-04 18:06 Blackops 阅读(261) 评论(0) 推荐(0)
Codeforeces 707B Bakery（BFS）
摘要：B. Bakery time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Masha wants to open her own ba 阅读全文
posted @ 2016-08-22 00:09 Blackops 阅读(421) 评论(0) 推荐(0)
CodeForces 86D Powerful array（莫队+优化）
摘要：D. Powerful array time limit per test 5 seconds memory limit per test 256 megabytes input standard input output standard output An array of positive i 阅读全文
posted @ 2016-08-21 11:52 Blackops 阅读(344) 评论(0) 推荐(0)
CodeForces 670E Correct Bracket Sequence Editor（list和迭代器函数模拟）
摘要：E. Correct Bracket Sequence Editor time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output E. Co 阅读全文
posted @ 2016-08-14 17:46 Blackops 阅读(315) 评论(0) 推荐(0)
Educational Codeforces Round 15 C. Cellular Network（二分）
摘要：C. Cellular Network time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output You are given n poin 阅读全文
posted @ 2016-07-31 11:36 Blackops 阅读(153) 评论(0) 推荐(0)
Codeforces Round #354 (Div. 2)——C. Vasya and String（尺取）
摘要：C. Vasya and String time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output C. Vasya and String t 阅读全文
posted @ 2016-07-10 10:38 Blackops 阅读(210) 评论(0) 推荐(0)
Codeforces Round #361 (Div. 2)——B. Mike and Shortcuts（BFS+小坑）
摘要：B. Mike and Shortcuts time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output B. Mike and Shortc 阅读全文
posted @ 2016-07-08 09:44 Blackops 阅读(202) 评论(0) 推荐(0)
Codeforces Round #360 (Div. 2)——C. NP-Hard Problem（BFS染色判二分图）
摘要：C. NP-Hard Problem time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output C. NP-Hard Problem ti 阅读全文
posted @ 2016-07-07 20:15 Blackops 阅读(243) 评论(0) 推荐(0)
Codeforces Round #358 (Div. 2)——C. Alyona and the Tree（树的DFS+逆向思维）
摘要：C. Alyona and the Tree time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output C. Alyona and the 阅读全文
posted @ 2016-06-20 23:23 Blackops 阅读(235) 评论(0) 推荐(0)

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