結果
問題 | No.64 XORフィボナッチ数列 |
ユーザー |
![]() |
提出日時 | 2020-06-26 10:30:44 |
言語 | Go (1.23.4) |
結果 |
AC
|
実行時間 | 2 ms / 5,000 ms |
コード長 | 2,111 bytes |
コンパイル時間 | 11,622 ms |
コンパイル使用メモリ | 234,136 KB |
実行使用メモリ | 6,948 KB |
最終ジャッジ日時 | 2024-07-03 22:10:28 |
合計ジャッジ時間 | 11,450 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 11 |
ソースコード
package mainimport ("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.Stdinwfp := os.Stdoutextra := 0if 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) {ff := make([]int64, 2)for i := 0; i < 2; i++ {ff[i] = getNextInt64(scanner)}n := getNextInt64(scanner)v := makeGrid(2, 2)for i := 0; i < 2; i++ {for j := 0; j < 2; j++ {v[i][j] = 1}}v[0][0] = 0for n > 0 {if n&1 == 1 {ff = mul(ff, v)}v = mulv(v)n >>= 1}fmt.Fprintln(writer, ff[0])}func mul(ff []int64, v [][]int64) []int64 {f := make([]int64, 2)for i := 0; i < 2; i++ {for j := 0; j < 2; j++ {f[i] = f[i] ^ (ff[j] * v[i][j])}}return f}func mulv(v [][]int64) [][]int64 {vv := makeGrid(2, 2)for i := 0; i < 2; i++ {for j := 0; j < 2; j++ {for k := 0; k < 2; k++ {vv[i][j] = vv[i][j] ^ (v[i][k] * v[k][j])}}}return vv}func makeGrid(h, w int) [][]int64 {index := make([][]int64, h, h)data := make([]int64, h*w, h*w)for i := 0; i < h; i++ {index[i] = data[i*w : (i+1)*w]}return index}