55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
//http://contest-hunter.org:83/contest/0x18%E3%80%8C%E5%9F%BA%E6%9C%AC%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E3%80%8D%E7%BB%83%E4%B9%A0/1806%20Matrix
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#include<cstdio>
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#include<iostream>
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#include<cstring>
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#include<set>
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#include<algorithm>
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using namespace std;
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const int maxn=1005;
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const unsigned long long Pr=13141,Pc=521;
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int N,M,A,B,Q;
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int a[maxn][maxn]; char buf[maxn];
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unsigned long long H[maxn][maxn],pmr[maxn],pmc[maxn];
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set<unsigned long long> st;
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inline void read(int R,int C)
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{
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for(int i=1;i<=R;i++)
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{
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scanf("%s",buf);
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for(int j=1;j<=C;j++) a[i][j]=(buf[j-1]-'0');
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}
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}
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inline void Cal(int R,int C)
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{
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for(int i=1;i<=R;i++) for(int j=1;j<=C;j++) H[i][j]=H[i-1][j]*Pr+H[i][j-1]*Pc-H[i-1][j-1]*Pr*Pc+(a[i][j]+51);
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}
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inline void Build()
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{
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unsigned long long RM=pmr[A],CM=pmc[B],BM=pmr[A]*pmc[B];
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for(int i=A;i<=N;i++) for(int j=B;j<=M;j++) st.insert( H[i][j] - H[i-A][j]*RM - H[i][j-B]*CM + H[i-A][j-B]*BM);
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}
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int main()
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{
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#ifdef local
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freopen("pro.in","r",stdin);
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freopen("pro.out","w",stdout);
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#endif
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scanf("%d%d%d%d",&N,&M,&A,&B);
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pmr[0]=pmc[0]=1;
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for(int i=1;i<maxn;i++) pmr[i]=pmr[i-1]*Pr,pmc[i]=pmc[i-1]*Pc;
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read(N,M);
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Cal(N,M);
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Build();
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scanf("%d",&Q);
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// cerr<<"Q="<<Q<<endl;
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while(Q-->0)
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{
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read(A,B);
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Cal(A,B);
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// cerr<<H[A][B]<<endl;
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if(st.find(H[A][B])!=st.end()) puts("1");
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else puts("0");
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}
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return 0;
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}
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