codeforces - 随笔分类 - xyiyy

Codeforces Round #318(Div 1) 573A, 573B,573C

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——by fraud这场的前两题完全是手速题。。。A题写了7分钟，交的时候已经500+了，好在B题出的速度勉强凑活吧，and C题也没有FSTA. Bear and PokerLimak is an old brown be... 阅读全文

posted @ 2015-08-30 15:00 xyiyy 阅读(1764) 评论(0) 推荐(0)

下沙友好群暑假训练二

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——byfraudA -PalindromesDescriptionFriday is Polycarpus' favourite day of the week. Not because it is followed by... 阅读全文

posted @ 2015-07-12 21:52 xyiyy 阅读(386) 评论(0) 推荐(0)

Codeforces Round #306 (Div. 2)

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——by fraudA. Two SubstringsYou are given strings. Your task is to determine if the given stringscontains two non... 阅读全文

posted @ 2015-06-05 03:47 xyiyy 阅读(250) 评论(0) 推荐(0)

Codeforces Round #302 (Div. 1)

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——by fraudA. Writing CodeProgrammers working on a large project have just received a task to write exactlymlines... 阅读全文

posted @ 2015-05-08 04:02 xyiyy 阅读(273) 评论(0) 推荐(0)

Codeforces Round #301 (Div. 2)

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——by fraudA. Combination LockScrooge McDuck keeps his most treasured savings in a home safe with a combination l... 阅读全文

posted @ 2015-05-01 16:31 xyiyy 阅读(327) 评论(0) 推荐(0)

codeforces 336D Vasily the Bear and Beautiful Strings(组合数学)

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——by fraudVasily the Bear and Beautiful StringsVasily the Bear lovesbeautifulstrings. Stringsisbeautifulif it me... 阅读全文

posted @ 2015-04-06 23:46 xyiyy 阅读(281) 评论(0) 推荐(0)

codeforces 337C Quiz(贪心)

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——by fraudQuizManao is taking part in a quiz. The quiz consists ofnconsecutive questions. A correct answer gives... 阅读全文

posted @ 2015-04-05 10:35 xyiyy 阅读(399) 评论(0) 推荐(0)

codeforces 336C Vasily the Bear and Sequence(贪心)

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——by fraudVasily the Bear and SequenceVasily the bear has got a sequence of positive integersa1, a2, ..., an. Va... 阅读全文

posted @ 2015-04-05 10:18 xyiyy 阅读(279) 评论(0) 推荐(0)

codeforces 335A Banana(贪心)

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——by fraudBananaPiegirl is buying stickers for a project. Stickers come on sheets, and each sheet of stickers co... 阅读全文

posted @ 2015-04-05 09:47 xyiyy 阅读(310) 评论(0) 推荐(0)

codeforces 339C Xenia and Bit Operations(线段树水题)

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——by fraudXenia and Bit OperationsXenia the beginner programmer has a sequencea, consisting of2nnon-negative int... 阅读全文

posted @ 2015-03-30 00:56 xyiyy 阅读(288) 评论(0) 推荐(0)

codeforces 339C Xenia and Weights(dp或暴搜)

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——by fraudXenia and WeightsXenia has a set of weights and pan scales. Each weight has an integer weight from 1 t... 阅读全文

posted @ 2015-03-30 00:53 xyiyy 阅读(361) 评论(0) 推荐(0)

codeforces 340E Iahub and Permutations(错排or容斥)

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——by fraudIahub and PermutationsIahub is so happy about inventing bubble sort graphs that he's staying all day l... 阅读全文

posted @ 2015-03-30 00:46 xyiyy 阅读(493) 评论(0) 推荐(0)

codeforces 340D Bubble Sort Graph（dp,LIS）

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——by fraudBubble Sort GraphIahub recently has learned Bubble Sort, an algorithm that is used to sort a permutati... 阅读全文

posted @ 2015-03-30 00:21 xyiyy 阅读(454) 评论(0) 推荐(0)

codeforces 340C Tourist Problem(公式题)

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——by fraudTourist ProblemIahub is a big fan of tourists. He wants to become a tourist himself, so he planned a t... 阅读全文

posted @ 2015-03-30 00:18 xyiyy 阅读(307) 评论(0) 推荐(0)

codeforces 342C Cupboard and Balloons(公式题)

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——by fraudC. Cupboard and BalloonsA girl named Xenia has a cupboard that looks like an arc from ahead. The arc i... 阅读全文

posted @ 2015-03-30 00:13 xyiyy 阅读(279) 评论(0) 推荐(0)

codeforces 342D Xenia and Dominoes（状压dp+容斥）

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——by fraudD. Xenia and DominoesXenia likes puzzles very much. She is especially fond of the puzzles that consist... 阅读全文

posted @ 2015-03-30 00:10 xyiyy 阅读(468) 评论(0) 推荐(0)

codeforces 519E A and B and Lecture Rooms（LCA，倍增）

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——by fraudE. A and B and Lecture RoomsA and B are preparing themselves for programming contests.The University w... 阅读全文

posted @ 2015-03-19 23:03 xyiyy 阅读(267) 评论(0) 推荐(0)

codeforces 337D Book of Evil(dp)

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——by fraudBook of EvilPaladin Manao caught the trail of the ancient Book of Evil in a swampy area. This area con... 阅读全文

posted @ 2015-03-15 10:14 xyiyy 阅读(296) 评论(0) 推荐(0)

codeforces 22C System Administrator(构造水题)

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——by fraudSystem AdministratorBob got a job as a system administrator in X corporation. His first task was to co... 阅读全文

posted @ 2015-03-15 09:59 xyiyy 阅读(391) 评论(0) 推荐(0)

codeforces 144D Missile Silos(最短路)

摘要：转载请注明出处：http://www.cnblogs.com/fraud/ ——by fraudMissile SilosA country called Berland consists of n cities, numbered with integer numbers from 1 to n.... 阅读全文

posted @ 2015-03-14 23:04 xyiyy 阅读(430) 评论(0) 推荐(0)

随笔分类 - codeforces