Theater stage is a rectangular field of size n × m. The director gave you the stage's plan which actors will follow. For each cell it is stated in the plan if there would be an actor in this cell or not. You are to place a spotlight on the stage in s…
B. Archer Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/312/problem/B Description SmallR is an archer. SmallR is taking a match of archer with Zanoes. They try to shoot in the target in turns, and SmallR shoots first. The…
A. Opponents 题目连接: http://www.codeforces.com/contest/688/problem/A Description Arya has n opponents in the school. Each day he will fight with all opponents who are present this day. His opponents have some fighting plan that guarantees they will win…
后天考试,今天做题,我真佩服自己... 这次又只A俩水题... orz各路神犇... 话说这次模拟题挺多... 半个多小时把前面俩水题做完,然后卡C,和往常一样,题目看懂做不出来... A: 算是模拟吧,反正看懂题目后很可耻的生硬水果,没被hack我觉得非常开心... 由于要求两个人至少一个没跳过,画图后发现很偷懒的方法. 虽然跟样例不同,但过了... #include <cstdio> int main() { int n, m; scanf("%d%d", &n…
B. Chocolate 题目连接: http://www.codeforces.com/contest/617/problem/D Descriptionww.co Bob loves everything sweet. His favorite chocolate bar consists of pieces, each piece may contain a nut. Bob wants to break the bar of chocolate into multiple pieces…
A. Elephant 题目连接: http://www.codeforces.com/contest/617/problem/A Descriptionww.co An elephant decided to visit his friend. It turned out that the elephant's house is located at point 0 and his friend's house is located at point x(x > 0) of the coord…
D. Polyline 题目连接: http://www.codeforces.com/contest/617/problem/D Descriptionww.co There are three points marked on the coordinate plane. The goal is to make a simple polyline, without self-intersections and self-touches, such that it passes through…
A. Bulbs 题目连接: http://www.codeforces.com/contest/615/problem/A Description Vasya wants to turn on Christmas lights consisting of m bulbs. Initially, all bulbs are turned off. There are n buttons, each of them is connected to some set of bulbs. Vasya…
A. Treasure Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/494/problem/A Description Malek has recently found a treasure map. While he was looking for a treasure he found a locked door. There was a string s written on the…
B. Rebranding Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/591/problem/B Description The name of one small but proud corporation consists of n lowercase English letters. The Corporation has decided to try rebranding — an…
B. Bakery 题目连接: http://www.codeforces.com/contest/707/problem/B Description Masha wants to open her own bakery and bake muffins in one of the n cities numbered from 1 to n. There are m bidirectional roads, each of whose connects some pair of cities.…
C. Cinema 题目连接: http://www.codeforces.com/contest/670/problem/C Description Moscow is hosting a major international conference, which is attended by n scientists from different countries. Each of the scientists knows exactly one language. For conveni…
A. Holidays 题目连接: http://www.codeforces.com/contest/670/problem/A Description On the planet Mars a year lasts exactly n days (there are no leap years on Mars). But Martians have the same weeks as earthlings - 5 work days and then 2 days off. Your tas…
B. Chips Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/333/problem/B Description Gerald plays the following game. He has a checkered field of size n × n cells, where m various cells are banned. Before the game, he has to…
A. Interview 题目连接: http://www.codeforces.com/contest/631/problem/A Description Blake is a CEO of a large company called "Blake Technologies". He loves his company very much and he thinks that his company should be the best. That is why every can…
CF链接 http://codeforces.com/contest/1011/problem/A Natasha is going to fly to Mars. She needs to build a rocket, which consists of several stages in some order. Each of the stages is defined by a lowercase Latin letter. This way, the rocket can be de…
C. Sanatorium time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Vasiliy spent his vacation in a sanatorium, came back and found that he completely forgot details of his vacation! Every day th…
A. Puzzles Time Limit: 2 Sec Memory Limit: 60 MB 题目连接 http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=5373 Description The end of the school year is near and Ms. Manana, the teacher, will soon have to say goodbye to a yet another class. S…
A. Pangram time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output A word or a sentence in some language is called a pangram if all the characters of the alphabet of this language appear in it at…
A. Letter 题目连接: http://www.codeforces.com/contest/14/problem/A Description A boy Bob likes to draw. Not long ago he bought a rectangular graph (checked) sheet with n rows and m columns. Bob shaded some of the squares on the sheet. Having seen his mas…
A. Fashion in Berland 题目连接: http://www.codeforces.com/contest/691/problem/A Description According to rules of the Berland fashion, a jacket should be fastened by all the buttons except only one, but not necessarily it should be the last one. Also if…
