package main import ( "bufio" "fmt" "os" "strconv" ) func configure(scanner *bufio.Scanner) { scanner.Split(bufio.ScanWords) scanner.Buffer(make([]byte, 1000005), 1000005) } func getNextString(scanner *bufio.Scanner) string { scanned := scanner.Scan() if !scanned { panic("scan failed") } return scanner.Text() } func getNextInt(scanner *bufio.Scanner) int { i, _ := strconv.Atoi(getNextString(scanner)) return i } func getNextInt64(scanner *bufio.Scanner) int64 { i, _ := strconv.ParseInt(getNextString(scanner), 10, 64) return i } func getNextFloat64(scanner *bufio.Scanner) float64 { i, _ := strconv.ParseFloat(getNextString(scanner), 64) return i } func main() { fp := os.Stdin wfp := os.Stdout extra := 0 if os.Getenv("I") == "IronMan" { fp, _ = os.Open(os.Getenv("END_GAME")) extra = 100 } scanner := bufio.NewScanner(fp) configure(scanner) writer := bufio.NewWriter(wfp) defer func() { r := recover() if r != nil { fmt.Fprintln(writer, r) } writer.Flush() }() solve(scanner, writer) for i := 0; i < extra; i++ { fmt.Fprintln(writer, "-----------------------------------") solve(scanner, writer) } } func solve(scanner *bufio.Scanner, writer *bufio.Writer) { h := getNextInt(scanner) w := getNextInt(scanner) aa := makeGrid(h, w) for i := 0; i < h; i++ { for j := 0; j < w; j++ { aa[i][j] = mint(getNextInt(scanner)) } } lu := makeGrid(h+2, w+2) ld := makeGrid(h+2, w+2) ru := makeGrid(h+2, w+2) rd := makeGrid(h+2, w+2) for i := 0; i < h+2; i++ { for j := 0; j < w+2; j++ { lu[i][j] = 1 ld[i][j] = 1 ru[i][j] = 1 rd[i][j] = 1 } } for i := 0; i < h; i++ { for j := 0; j < w; j++ { lu[i+1][j+1] = aa[i][j] ld[i+1][j+1] = aa[i][j] ru[i+1][j+1] = aa[i][j] rd[i+1][j+1] = aa[i][j] } } for i := 0; i < h+1; i++ { for j := 0; j < w; j++ { lu[i][j+1].mulAs(lu[i][j]) } for j := w; j > 0; j-- { ru[i][j-1].mulAs(ru[i][j]) } } for i := h; i > 0; i-- { for j := 0; j < w; j++ { ld[i][j+1].mulAs(ld[i][j]) } for j := w; j > 0; j-- { rd[i][j-1].mulAs(rd[i][j]) } } for j := 0; j < w+1; j++ { for i := 0; i < h; i++ { lu[i+1][j].mulAs(lu[i][j]) } for i := h; i > 0; i-- { ld[i-1][j].mulAs(ld[i][j]) } } for j := w; j > 0; j-- { for i := 0; i < h; i++ { ru[i+1][j].mulAs(ru[i][j]) } for i := h; i > 0; i-- { rd[i-1][j].mulAs(rd[i][j]) } } q := getNextInt(scanner) for i := 0; i < q; i++ { r := getNextInt(scanner) c := getNextInt(scanner) fmt.Fprintln(writer, lu[r-1][c-1].mul(ru[r-1][c+1]).mul(ld[r+1][c-1]).mul(rd[r+1][c+1])) } } func makeGrid(h, w int) [][]mint { index := make([][]mint, h, h) data := make([]mint, h*w, h*w) for i := 0; i < h; i++ { index[i] = data[i*w : (i+1)*w] } return index } type mint int64 func (mt mint) mod() mint { m := mint(1e9 + 7) mt %= m if mt < 0 { return mt + m } return mt } func (mt mint) inv() mint { return mt.pow(mint(0).sub(2)) } func (mt mint) pow(n mint) mint { p := mint(1) for n > 0 { if n&1 == 1 { p.mulAs(mt) } mt.mulAs(mt) n >>= 1 } return p } func (mt mint) add(x mint) mint { return (mt + x).mod() } func (mt mint) sub(x mint) mint { return (mt - x).mod() } func (mt mint) mul(x mint) mint { return (mt * x).mod() } func (mt mint) div(x mint) mint { return mt.mul(x.inv()) } func (mt *mint) addAs(x mint) *mint { *mt = mt.add(x) return mt } func (mt *mint) subAs(x mint) *mint { *mt = mt.sub(x) return mt } func (mt *mint) mulAs(x mint) *mint { *mt = mt.mul(x) return mt } func (mt *mint) divAs(x mint) *mint { *mt = mt.div(x) return mt }