結果
問題 | No.90 品物の並び替え |
ユーザー | ichyo |
提出日時 | 2014-12-07 19:19:40 |
言語 | Go (1.22.1) |
結果 |
AC
|
実行時間 | 489 ms / 5,000 ms |
コード長 | 2,025 bytes |
コンパイル時間 | 10,473 ms |
コンパイル使用メモリ | 226,348 KB |
実行使用メモリ | 6,400 KB |
最終ジャッジ日時 | 2024-10-10 02:36:22 |
合計ジャッジ時間 | 11,911 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 1 ms
5,248 KB |
testcase_01 | AC | 38 ms
5,248 KB |
testcase_02 | AC | 1 ms
5,248 KB |
testcase_03 | AC | 4 ms
5,248 KB |
testcase_04 | AC | 6 ms
5,248 KB |
testcase_05 | AC | 42 ms
5,248 KB |
testcase_06 | AC | 31 ms
5,248 KB |
testcase_07 | AC | 2 ms
5,248 KB |
testcase_08 | AC | 2 ms
5,248 KB |
testcase_09 | AC | 489 ms
6,400 KB |
ソースコード
package main import "fmt" import "sort" func compare(a, b []int) int { for i := 0; i < len(a) && i < len(b); i++ { switch { case a[i] > b[i]: return 1 case a[i] < b[i]: return -1 } } switch { case len(a) > len(b): return 1 case len(a) < len(b): return -1 } return 0 } func nextPermutation(seq []int) bool { var j int = -1 var m int = -1 // Attempt to find the j index, this is the first index where it's value is // less than the after it (i.e. seq[j] < seq[j+1]) for index := len(seq) - 2; index >= 0; index-- { if seq[index] < seq[index+1] { j = index break } } // If no index was found then finish if j == -1 { return false } // Find the m index, this is the first index where the value is greater than // the value at j for index := len(seq) - 1; index > j; index-- { if seq[index] > seq[j] { m = index break } } // Swap the values at the two indexes seq[j], seq[m] = seq[m], seq[j] // Order all of the values after j upper := seq[j+1:] sort.Ints(upper) for i, v := range upper { seq[j+i+1] = v } return true } func Next(seq []int) bool { current := make([]int, len(seq), len(seq)) copy(current, seq) for i := 1; i < len(seq); i++ { success := nextPermutation(seq) if compare(current, seq) != 0 { return success } } return false } func get(seq []int, val int) int { for i, v := range seq { if v == val { return i } } return -1 } func main() { var n, m int fmt.Scan(&n, &m) a := make([]int, m) b := make([]int, m) c := make([]int, m) for i, _ := range a { fmt.Scan(&a[i], &b[i], &c[i]) } v := make([]int, n) for i, _ := range v { v[i] = i } ans := 0 for { cnt := 0 for i, _ := range a { p := get(v, a[i]) q := get(v, b[i]) if p < q { cnt += c[i] } } if ans < cnt { ans = cnt } res := Next(v) if !res { break } } fmt.Println(ans) }