algzjh的博客

StarsTime Limit: 1000MS Memory Limit: 65536K Total Submissions: 46469 Accepted: 20046 DescriptionAstronomers often examine star maps where stars are represented by points on a plane and e

Mobile phonesTime Limit: 5000MS Memory Limit: 65536K Total Submissions: 20176 Accepted: 9336 DescriptionSuppose that the fourth generation mobile phone base stations in the Tampere area o

Dynamic RankingsTime Limit: 10 Seconds Memory Limit: 32768 KBThe Company Dynamic Rankings has developed a new kind of computer that is no longer satisfied with the query like to simply find the k-

int lowbit(int x) {return x&(-x);}int sum(int i)//求前i项和 { int s=0; while(i>0) { s+=bit[i]; i-=lowbit(i); } return s; }void add(int i,int val) { while(i<=n) {