utoppia is another word .

160. Magic Multiplying Machine time limit per test: 1 sec. memory limit per test: 65536 KB input: standard input output: standard output Well known Las-Vegas casino "Big Jo" has recentl

表达式求值，蛮有意思的，某年校赛就出这题了呢。。。 依然顺手。。。哈哈。。。就算退役了心依然不死呢。。。 #include #include #include #include using namespace std; int const nMax = 10100; #define sf scanf #define pf printf #define rep(i,n) for(in

全排列，next_permutation #include #include #include #include #include #include using namespace std; #define sf scanf #define pf printf #define rep(i,n) for(int (i)=0;(i)<(n);(i)++) #define

Ural 1019. Line Painting 直接离散化然后暴力染色。 注意离散化的时候在线段头尾都多插一点，否则很容易错。 #include #include #include #include #include using namespace std; #define nMax 20000 int n; char s[20]; struct Ask{ int a,b,

142. Keyword time limit per test: 1 sec. memory limit per test: 16384 KB Kevin has inventeda new algorithm to crypt and decrypt messages, which he thinks is unbeatable.The algorithm uses a very

178. Golden chain time limit per test: 0.5 sec. memory limit per test: 4096 KB input: standard output: standard Peter arrived to the city and stayed in the hotel. He has no money but fe

186. The Chain time limit per test: 0.5 sec. memory limit per test: 4096 KB input: standard input output: standard output Smith has N chains. Each chain is the sequence of successively

181. X-Sequence time limit per test: 0.5 sec. memory limit per test: 4096 KB input: standard output: standard Let {xi} be the infinite sequence of integers: 1) x0 = A; 2) xi = (alpha

196. Matrix Multiplication time limit per test: 0.5 sec. memory limit per test: 65536 KB input: standard output: standard Let us consider an undirected graph G = which has N vertices a

126. Boxes time limit per test: 0.5 sec. memory limit per test: 4096 KB There are two boxes. There are A balls in the first box, and B balls in the second box (0 < A + B < 2147483648). It is pos

题目描述： 114. Telecasting station time limit per test: 0.5 sec. memory limit per test: 4096 KB Every city in Berland is situated on Ox axis. The government of the country decided to build ne

题目描述： 115. Calendar time limit per test: 0.5 sec. memory limit per test: 4096 KB First year of new millenium is gone away. In commemoration of it write a program that finds the name of th

153. Playing with matches time limit per test: 0.5 sec. memory limit per test: 4096 KB input: standard input output: standard output Little boy Petya plays a game with his friend. They

题目描述： 108. Self-numbers 2 time limit per test: 1 sec. memory limit per test: 4096 KB In 1949 the Indian mathematician D.R. Kaprekar discovered a class of numbers called self-numbers. For

题目描述： 133. Border time limit per test: 0.5 sec. memory limit per test: 4096 KB Along the border betweenstates A and B there are N defence outposts. For everyoutpost k, the interval [Ak

题目描述： 135. Drawing Lines time limit per test: 0.5 sec. memory limit per test: 4096 KB Little Johnny likesto draw a lot. A few days ago he painted lots of straight lines on hissheet of pap

题目描述： 130. Circle time limit per test: 0.5 sec. memory limit per test: 4096 KB On a circle border there are 2k different points A1, A2, ..., A2k, located contiguously. These points connec

题目描述： 128. Snake time limit per test: 0.5 sec. memory limit per test: 4096 KB There are N points given by their coordinates on a plane. All coordinates (xi,yi) are integers in a range fro