Codeforces Round #346 (Div. 2)---E. New Reform E. New Reform time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Berland has n cities connected by m bidirectional roads. No road connects a city…

A. Round House 题目链接http://codeforces.com/contest/659/problem/A Description Vasya lives in a round building, whose entrances are numbered sequentially by integers from 1 to n. Entrance n and entrance 1 are adjacent. Today Vasya got bored and decided t…

A. Round House 题目连接: http://www.codeforces.com/contest/659/problem/A Description Vasya lives in a round building, whose entrances are numbered sequentially by integers from 1 to n. Entrance n and entrance 1 are adjacent. Today Vasya got bored and dec…

D. Bicycle Race 题目链接http://codeforces.com/contest/659/problem/D Description Maria participates in a bicycle race. The speedway takes place on the shores of Lake Lucerne, just repeating its contour. As you know, the lake shore consists only of straigh…

C. Tanya and Toys 题目链接http://codeforces.com/contest/659/problem/C Description In Berland recently a new collection of toys went on sale. This collection consists of 109 types of toys, numbered with integers from 1 to 109. A toy from the new collectio…

B. Qualifying Contest 题目链接http://codeforces.com/contest/659/problem/B Description Very soon Berland will hold a School Team Programming Olympiad. From each of the m Berland regions a team of two people is invited to participate in the olympiad. The q…

G. Fence Divercity 题目连接: http://www.codeforces.com/contest/659/problem/G Description Long ago, Vasily built a good fence at his country house. Vasily calls a fence good, if it is a series of n consecutively fastened vertical boards of centimeter widt…

F. Polycarp and Hay 题目连接: http://www.codeforces.com/contest/659/problem/F Description The farmer Polycarp has a warehouse with hay, which can be represented as an n × m rectangular table, where n is the number of rows, and m is the number of columns…

E. New Reform 题目连接: http://www.codeforces.com/contest/659/problem/E Description Berland has n cities connected by m bidirectional roads. No road connects a city to itself, and each pair of cities is connected by no more than one road. It is not guara…

D. Bicycle Race 题目连接: http://www.codeforces.com/contest/659/problem/D Description Maria participates in a bicycle race. The speedway takes place on the shores of Lake Lucerne, just repeating its contour. As you know, the lake shore consists only of s…