結果
問題 | No.488 四角関係 |
ユーザー |
![]() |
提出日時 | 2020-07-17 00:37:50 |
言語 | Go (1.23.4) |
結果 |
AC
|
実行時間 | 92 ms / 5,000 ms |
コード長 | 2,158 bytes |
コンパイル時間 | 16,033 ms |
コンパイル使用メモリ | 228,976 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-11-26 02:44:10 |
合計ジャッジ時間 | 17,710 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 22 |
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) {n := getNextInt(scanner)m := getNextInt(scanner)ee := makeGrid(n, n)for i := 0; i < m; i++ {a := getNextInt(scanner)b := getNextInt(scanner)ee[a][b] = 1ee[b][a] = 1}var ans intfor i := 0; i < n; i++ {for j := 0; j < i; j++ {for k := 0; k < j; k++ {for l := 0; l < k; l++ {if square(i, j, k, l, ee) {ans++}}}}}fmt.Fprintln(writer, ans)}func square(i, j, k, l int, ee [][]int) bool {m := map[int]int{}m[i] += ee[i][j]m[i] += ee[i][k]m[i] += ee[i][l]m[j] += ee[j][i]m[j] += ee[j][k]m[j] += ee[j][l]m[k] += ee[k][j]m[k] += ee[k][i]m[k] += ee[k][l]m[l] += ee[l][j]m[l] += ee[l][k]m[l] += ee[l][i]for _, c := range m {if c != 2 {return false}}return true}func makeGrid(h, w int) [][]int {index := make([][]int, h, h)data := make([]int, h*w, h*w)for i := 0; i < h; i++ {index[i] = data[i*w : (i+1)*w]}return index}