摘要：A. Winner time limit per test 1 second memory limit per test 64 megabytes input standard input output standard output The winner of the card game popu 阅读全文

摘要：给出A(x0, y0) B(x1, y1) C(x2, y2) 1.求3边a,b,c 2. 先求外接圆半径。（一定存在） 海伦公式 + 正弦定理 得 R = a * b * c / (4 * S) S = sqrt(q * (q - a) * (q - b) * (q -c)); q = (a + 阅读全文

摘要：Problem Description Pass a year learning in Hangzhou, yifenfei arrival hometown Ningbo at finally. Leave Ningbo one year, yifenfei have many people to 阅读全文

摘要：#include #include using namespace std; int m,n; int cnt; char mapp[105][105]; int dir[4][2]={1,0,-1,0,0,1,0,-1}; struct node { int x; int y; }; void BFS(int x,int y) { node now,next; ... 阅读全文