摘要:
题意简述:给定一颗有$N(N include using namespace std; const int N=3010; struct fk{int to,nxt;}e[Nval[v])f[u]=1; } } int main(){ scanf("%d",&n); for(int i=1;i 阅读全文
摘要:
题意简述:有$N(2 include using namespace std; const int N=410,M=1e5+10; int n,m,ans; int x[M],y[M],die[N]; bitset s[N]; int main(){ scanf("%d%d",&n,&m); for 阅读全文
摘要:
题意简述:给一个$N M(N,M include include include using namespace std; define id(i,j) ((i 1) m+j) const int N=210,inf=1e9; struct fk{int to,nxt,w;}e[N N N 2]; 阅读全文
摘要:
题意简述:给定一个$N M(N,M include using namespace std; const int N=2010; int sum_v[N][N],sum_l[N][N],sum_r[N][N]; int n,m,q; char s[N][N]; int read(){ char ch 阅读全文