Submission #6433022
Source Code Expand
package main import ( "bufio" "fmt" "os" "strconv" ) func getScanner(fp *os.File) *bufio.Scanner { scanner := bufio.NewScanner(fp) scanner.Split(bufio.ScanWords) scanner.Buffer(make([]byte, 500001), 500000) return scanner } func getNextString(scanner *bufio.Scanner) string { scanner.Scan() 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 main() { fp := os.Stdin if len(os.Args) > 1 { fp, _ = os.Open(os.Args[1]) } scanner := getScanner(fp) writer := bufio.NewWriter(os.Stdout) n := getNextInt(scanner) a := getNextInt(scanner) - 1 b := getNextInt(scanner) - 1 m := getNextInt(scanner) var dp [101][100]int var ll [100][]int dp[0][a] = 1 for i := 0; i < n; i++ { ll[i] = []int{} } for i := 0; i < m; i++ { x := getNextInt(scanner) - 1 y := getNextInt(scanner) - 1 ll[x] = append(ll[x], y) ll[y] = append(ll[y], x) } for i := 0; i < n; i++ { for ii := 0; ii < n; ii++ { if dp[i][ii] == 0 { continue } for _, x := range ll[ii] { dp[i+1][x] += dp[i][ii] dp[i+1][x] %= int(1e9 + 7) } } } ans := 0 for i := 0; i < n; i++ { if dp[i][b] > 0 { ans = dp[i][b] break } } fmt.Fprintln(writer, ans) writer.Flush() }
Submission Info
Submission Time | |
---|---|
Task | C - 正直者の高橋くん |
User | ccppjsrb |
Language | Go (1.6) |
Score | 100 |
Code Size | 1491 Byte |
Status | AC |
Exec Time | 2 ms |
Memory | 768 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 100 / 100 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | subtask0_sample_01.txt, subtask0_sample_02.txt |
All | subtask0_sample_01.txt, subtask0_sample_02.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt, subtask1_17.txt, subtask1_18.txt, subtask1_19.txt, subtask1_20.txt, subtask1_21.txt, subtask1_22.txt, subtask1_23.txt, subtask1_24.txt, subtask1_25.txt, subtask1_26.txt, subtask1_27.txt, subtask1_28.txt, subtask1_29.txt, subtask1_30.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
subtask0_sample_01.txt | AC | 1 ms | 768 KB |
subtask0_sample_02.txt | AC | 1 ms | 768 KB |
subtask1_01.txt | AC | 1 ms | 768 KB |
subtask1_02.txt | AC | 1 ms | 768 KB |
subtask1_03.txt | AC | 1 ms | 768 KB |
subtask1_04.txt | AC | 1 ms | 768 KB |
subtask1_05.txt | AC | 1 ms | 768 KB |
subtask1_06.txt | AC | 1 ms | 768 KB |
subtask1_07.txt | AC | 1 ms | 768 KB |
subtask1_08.txt | AC | 1 ms | 768 KB |
subtask1_09.txt | AC | 1 ms | 768 KB |
subtask1_10.txt | AC | 1 ms | 768 KB |
subtask1_11.txt | AC | 1 ms | 768 KB |
subtask1_12.txt | AC | 1 ms | 768 KB |
subtask1_13.txt | AC | 1 ms | 768 KB |
subtask1_14.txt | AC | 1 ms | 768 KB |
subtask1_15.txt | AC | 1 ms | 768 KB |
subtask1_16.txt | AC | 2 ms | 768 KB |
subtask1_17.txt | AC | 1 ms | 768 KB |
subtask1_18.txt | AC | 2 ms | 768 KB |
subtask1_19.txt | AC | 2 ms | 768 KB |
subtask1_20.txt | AC | 2 ms | 768 KB |
subtask1_21.txt | AC | 2 ms | 768 KB |
subtask1_22.txt | AC | 1 ms | 768 KB |
subtask1_23.txt | AC | 1 ms | 768 KB |
subtask1_24.txt | AC | 1 ms | 768 KB |
subtask1_25.txt | AC | 1 ms | 768 KB |
subtask1_26.txt | AC | 1 ms | 768 KB |
subtask1_27.txt | AC | 1 ms | 768 KB |
subtask1_28.txt | AC | 1 ms | 768 KB |
subtask1_29.txt | AC | 1 ms | 768 KB |
subtask1_30.txt | AC | 1 ms | 768 KB |