A. Kyoya and Photobooks Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/554/problem/A Description Kyoya Ootori is selling photobooks of the Ouran High School Host Club. He has 26 photos, labeled "a" to "z", a…
2014多校第五题,当时题面上的10^5写成105,我们大家都wa了几发,改正后我和一血就差几秒…不能忍 题目:http://acm.hdu.edu.cn/showproblem.php?pid=4891 The Great Pan Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 966 Accepted Submission(s…
B. Ohana Cleans Up Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/554/problem/B Description Ohana Matsumae is trying to clean a room, which is divided up into an n by n grid of squares. Each square is initially either clea…
time limit per test: 1 second memory limit per test: 256 megabytes input: standard input output: standard output Given a string sss of length nnn and integer k (1≤k≤n)k\ (1≤k≤n)k (1≤k≤n). The string sss has a level xxx, if xxx is largest non-negative…