#pragma GCC optimize ("Ofast") #include using namespace std; #define MD (1000000007U) struct Modint{ unsigned val; Modint(){ val=0; } Modint(int a){ val = ord(a); } Modint(unsigned a){ val = ord(a); } Modint(long long a){ val = ord(a); } Modint(unsigned long long a){ val = ord(a); } inline unsigned ord(unsigned a){ return a%MD; } inline unsigned ord(int a){ a %= (int)MD; if(a < 0){ a += MD; } return a; } inline unsigned ord(unsigned long long a){ return a%MD; } inline unsigned ord(long long a){ a %= (int)MD; if(a < 0){ a += MD; } return a; } inline unsigned get(){ return val; } inline Modint &operator+=(Modint a){ val += a.val; if(val >= MD){ val -= MD; } return *this; } inline Modint &operator-=(Modint a){ if(val < a.val){ val = val + MD - a.val; } else{ val -= a.val; } return *this; } inline Modint &operator*=(Modint a){ val = ((unsigned long long)val*a.val)%MD; return *this; } inline Modint &operator/=(Modint a){ return *this *= a.inverse(); } inline Modint operator+(Modint a){ return Modint(*this)+=a; } inline Modint operator-(Modint a){ return Modint(*this)-=a; } inline Modint operator*(Modint a){ return Modint(*this)*=a; } inline Modint operator/(Modint a){ return Modint(*this)/=a; } inline Modint operator+(int a){ return Modint(*this)+=Modint(a); } inline Modint operator-(int a){ return Modint(*this)-=Modint(a); } inline Modint operator*(int a){ return Modint(*this)*=Modint(a); } inline Modint operator/(int a){ return Modint(*this)/=Modint(a); } inline Modint operator+(long long a){ return Modint(*this)+=Modint(a); } inline Modint operator-(long long a){ return Modint(*this)-=Modint(a); } inline Modint operator*(long long a){ return Modint(*this)*=Modint(a); } inline Modint operator/(long long a){ return Modint(*this)/=Modint(a); } inline Modint operator-(void){ Modint res; if(val){ res.val=MD-val; } else{ res.val=0; } return res; } inline operator bool(void){ return val!=0; } inline operator int(void){ return get(); } inline operator long long(void){ return get(); } inline Modint inverse(){ int a = val; int b = MD; int u = 1; int v = 0; int t; Modint res; while(b){ t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } if(u < 0){ u += MD; } res.val = u; return res; } inline Modint pw(unsigned long long b){ Modint a(*this); Modint res; res.val = 1; while(b){ if(b&1){ res *= a; } b >>= 1; a *= a; } return res; } inline bool operator==(int a){ return ord(a)==val; } inline bool operator!=(int a){ return ord(a)!=val; } } ; inline Modint operator+(int a, Modint b){ return Modint(a)+=b; } inline Modint operator-(int a, Modint b){ return Modint(a)-=b; } inline Modint operator*(int a, Modint b){ return Modint(a)*=b; } inline Modint operator/(int a, Modint b){ return Modint(a)/=b; } inline Modint operator+(long long a, Modint b){ return Modint(a)+=b; } inline Modint operator-(long long a, Modint b){ return Modint(a)-=b; } inline Modint operator*(long long a, Modint b){ return Modint(a)*=b; } inline Modint operator/(long long a, Modint b){ return Modint(a)/=b; } inline int my_getchar_unlocked(){ static char buf[1048576]; static int s = 1048576; static int e = 1048576; if(s == e && e == 1048576){ e = fread_unlocked(buf, 1, 1048576, stdin); s = 0; } if(s == e){ return EOF; } return buf[s++]; } inline void rd(int &x){ int k; int m=0; x=0; for(;;){ k = my_getchar_unlocked(); if(k=='-'){ m=1; break; } if('0'<=k&&k<='9'){ x=k-'0'; break; } } for(;;){ k = my_getchar_unlocked(); if(k<'0'||k>'9'){ break; } x=x*10+k-'0'; } if(m){ x=-x; } } inline int rd_int(void){ int x; rd(x); return x; } struct MY_WRITER{ char buf[1048576]; int s; int e; MY_WRITER(){ s = 0; e = 1048576; } ~MY_WRITER(){ if(s){ fwrite_unlocked(buf, 1, s, stdout); } } } ; MY_WRITER MY_WRITER_VAR; void my_putchar_unlocked(int a){ if(MY_WRITER_VAR.s == MY_WRITER_VAR.e){ fwrite_unlocked(MY_WRITER_VAR.buf, 1, MY_WRITER_VAR.s, stdout); MY_WRITER_VAR.s = 0; } MY_WRITER_VAR.buf[MY_WRITER_VAR.s++] = a; } inline void wt_L(char a){ my_putchar_unlocked(a); } inline void wt_L(int x){ int s=0; int m=0; char f[10]; if(x<0){ m=1; x=-x; } while(x){ f[s++]=x%10; x/=10; } if(!s){ f[s++]=0; } if(m){ my_putchar_unlocked('-'); } while(s--){ my_putchar_unlocked(f[s]+'0'); } } inline void wt_L(Modint x){ int i; i = (int)x; wt_L(i); } int H; int W; int A[100000]; int R; int C; int zero; int r0[100000]; int c0[100000]; Modint tot; Modint rr[100000]; Modint cc[100000]; int main(){ int ao_dF3pO, i; int z; Modint res; rd(H); rd(W); { int Lj4PdHRW; for(Lj4PdHRW=(0);Lj4PdHRW<(H*W);Lj4PdHRW++){ rd(A[Lj4PdHRW]); } } tot = 1; for(i=(0);i<(H);i++){ rr[i] = 1; } for(i=(0);i<(W);i++){ cc[i] = 1; } for(i=(0);i<(H);i++){ int j; for(j=(0);j<(W);j++){ if(A[i*W+j]==0){ zero++; r0[i]++; c0[j]++; } else{ tot *= A[i*W+j]; rr[i] *= A[i*W+j]; cc[j] *= A[i*W+j]; } } } int tU__gIr_ = rd_int(); for(ao_dF3pO=(0);ao_dF3pO<(tU__gIr_);ao_dF3pO++){ rd(R);R += (-1); rd(C);C += (-1); z = zero - r0[R] - c0[C]; if(A[R*W+C]==0){ z++; } if(z){ wt_L(0); wt_L('\n'); continue; } res = tot / rr[R] / cc[C]; if(A[R*W+C]!=0){ res *= A[R*W+C]; } wt_L(res); wt_L('\n'); } return 0; } // cLay varsion 20200509-1 // --- original code --- // int H, W, A[1d5], R, C; // int zero, r0[1d5], c0[1d5]; // Modint tot, rr[1d5], cc[1d5]; // { // int z; // Modint res; // // rd(H,W,A(H*W)); // // tot = 1; // rep(i,H) rr[i] = 1; // rep(i,W) cc[i] = 1; // rep(i,H) rep(j,W){ // if(A[i*W+j]==0){ // zero++; // r0[i]++; // c0[j]++; // } else { // tot *= A[i*W+j]; // rr[i] *= A[i*W+j]; // cc[j] *= A[i*W+j]; // } // } // // REP(rd_int()){ // rd(R--,C--); // z = zero - r0[R] - c0[C]; // if(A[R*W+C]==0) z++; // if(z) wt(0), continue; // // res = tot / rr[R] / cc[C]; // if(A[R*W+C]!=0) res *= A[R*W+C]; // wt(res); // } // }