package main import ( "bufio" "fmt" "os" "sort" "strconv" ) var sc = bufio.NewScanner(os.Stdin) var wr = bufio.NewWriter(os.Stdout) func out(x ...interface{}) { fmt.Fprintln(wr, x...) } func getI() int { sc.Scan() i, e := strconv.Atoi(sc.Text()) if e != nil { panic(e) } return i } func getF() float64 { sc.Scan() i, e := strconv.ParseFloat(sc.Text(), 64) if e != nil { panic(e) } return i } func getInts(N int) []int { ret := make([]int, N) for i := 0; i < N; i++ { ret[i] = getI() } return ret } func getS() string { sc.Scan() return sc.Text() } // min, max, asub, absなど基本関数 func max(a, b int) int { if a > b { return a } return b } func min(a, b int) int { if a < b { return a } return b } func asub(a, b int) int { if a > b { return a - b } return b - a } func abs(a int) int { if a >= 0 { return a } return -a } func lowerBound(a []int, x int) int { idx := sort.Search(len(a), func(i int) bool { return a[i] >= x }) return idx } func upperBound(a []int, x int) int { idx := sort.Search(len(a), func(i int) bool { return a[i] > x }) return idx } func move(a, b [][]int) ([][]int, int) { cx, cy := 0, 0 flg := true for y := 0; y < 4; y++ { for x := 0; x < 4; x++ { if a[y][x] != b[y][x] { flg = false } if a[y][x] == 0 { cx, cy = x, y } } } if flg == true { return a, 1 } dx := []int{-1, 1, 0, 0} dy := []int{0, 0, -1, 1} for i := 0; i < 4; i++ { px := cx + dx[i] py := cy + dy[i] if px < 0 || py < 0 || px >= 4 || py >= 4 { continue } if b[cy][cx] == a[py][px] { a[py][px], a[cy][cx] = a[cy][cx], a[py][px] return a, 0 } } return a, -1 } func main() { defer wr.Flush() sc.Split(bufio.ScanWords) sc.Buffer([]byte{}, 1000000) // this template is new version. // use getI(), getS(), getInts(), getF() a := make([][]int, 4) b := make([][]int, 4) for i := 0; i < 4; i++ { a[i] = getInts(4) } b[0] = []int{1, 2, 3, 4} b[1] = []int{5, 6, 7, 8} b[2] = []int{9, 10, 11, 12} b[3] = []int{13, 14, 15, 0} for { var ok int b, ok = move(b, a) if ok == 1 { out("Yes") break } if ok == -1 { out("No") break } } }