bzoj3750 [POI2015]Piecz??

 1 #include <bits/stdc++.h>
 2 #define il inline
 3 #define RG register
 4 #define ll long long
 5 
 6 using namespace std;
 7 
 8 struct data{ int x,y; }st[1000010];
 9 
10 int vis[1010][1010],g[1010][1010],n,m,a,b,top;
11 
12 il int gi(){
13   RG int x=0,q=1; RG char ch=getchar();
14   while ((ch<‘0‘ || ch>‘9‘) && ch!=‘-‘) ch=getchar();
15   if (ch==‘-‘) q=-1,ch=getchar();
16   while (ch>=‘0‘ && ch<=‘9‘) x=x*10+ch-48,ch=getchar();
17   return q*x;
18 }
19 
20 il char gc(){
21   RG char ch=getchar();
22   while (ch!=‘.‘ && ch!=‘x‘) ch=getchar(); return ch;
23 }
24 
25 il void work(){
26   n=gi(),m=gi(),a=gi(),b=gi(),top=0;
27   for (RG int i=1;i<=n;++i)
28     for (RG int j=1;j<=m;++j) g[i][j]=gc()==‘x‘,vis[i][j]=0;
29   for (RG int i=1;i<=a;++i)
30     for (RG int j=1;j<=b;++j) if (gc()==‘x‘) st[++top]=(data){i,j};
31   for (RG int i=top;i;--i) st[i].x-=st[1].x,st[i].y-=st[1].y;
32   for (RG int i=1;i<=n;++i)
33     for (RG int j=1;j<=m;++j){
34       if (!g[i][j] || vis[i][j]) continue;
35       for (RG int k=1,X,Y;k<=top;++k){
36     X=i+st[k].x,Y=j+st[k].y;
37     if (X<=0 || X>n || Y<=0 || Y>m || vis[X][Y] || !g[X][Y]){ puts("NIE"); return; }
38     vis[X][Y]=1;
39       }
40     }
41   puts("TAK"); return;
42 }
43 
44 int main(){
45 #ifndef ONLINE_JUDGE
46   freopen("pieczec.in","r",stdin);
47   freopen("pieczec.out","w",stdout);
48 #endif
49   RG int T=gi();
50   while (T--) work();
51   return 0;
52 }