TLE,额 ,有空再写吧. #include<queue> #include<cstdio> #include<vector> #include<algorithm> #include<cmath> using namespace std; ]={,,-,-,,,-,-},dy[]={,-,,-,,-,,-}; ; struct node{ int x,y; int step,state; }; queue<node>q; int n
点击打开链接 2226: Contest Print Server Time Limit: 1 Sec Memory Limit: 128 MB Submit: 53 Solved: 18 [Submit][Status][Web Board] Description In ACM/ICPC on-site contests ,3 students share 1 computer,so you can print your source code any time. Here you ne
[题目]洛谷10月月赛R1 提高组 [算法]递推DP+树状数组 [题解]列出DP递推方程,然后用树状数组维护前后缀和. #include<cstdio> #include<cstring> #include<cctype> #include<cmath> #include<algorithm> #define lowbit(x) (x&-x) #define ll long long using namespace std; int re