B. Strongly Connected City time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output 题目链接: http://codeforces.com/contest/475/probl
A. Bayan Bus time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output 题目链接: http://codeforces.com/contest/475/problem/A The fi
D. CGCDSSQ time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Given a sequence of integers a1, ..., an andq queries
5.Warm Up Rituals 五、热身仪式 A warm up ritual is your per flight checklist you go through before you start focusing for a big session.It may be checking that you have water, that you don’t need to use t
这道题好多种做法,,, 1、联通图。 由于题目特点,这道题可以转化为求图的该图的各个子联通图,每个包含x个点的联通图都可以最多得到不重叠的x/2个牌。 注意这句话:很重要的(It's guaranteed the dominoes in the same direction are not overlapped, but horizontal and vertical dominoe