結果
問題 | No.2102 [Cherry Alpha *] Conditional Reflection |
ユーザー | 草苺奶昔 |
提出日時 | 2023-12-16 17:27:23 |
言語 | Go (1.22.1) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,193 bytes |
コンパイル時間 | 12,216 ms |
コンパイル使用メモリ | 237,904 KB |
実行使用メモリ | 51,220 KB |
最終ジャッジ日時 | 2024-09-27 07:45:06 |
合計ジャッジ時間 | 36,449 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | 2 ms
6,812 KB |
testcase_01 | AC | 1 ms
6,940 KB |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | AC | 160 ms
12,680 KB |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | AC | 56 ms
6,948 KB |
testcase_09 | WA | - |
testcase_10 | AC | 104 ms
9,628 KB |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | AC | 106 ms
11,348 KB |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | WA | - |
testcase_29 | WA | - |
testcase_30 | WA | - |
testcase_31 | WA | - |
testcase_32 | WA | - |
testcase_33 | WA | - |
testcase_34 | WA | - |
testcase_35 | WA | - |
testcase_36 | WA | - |
testcase_37 | WA | - |
testcase_38 | WA | - |
testcase_39 | WA | - |
testcase_40 | WA | - |
testcase_41 | WA | - |
testcase_42 | WA | - |
testcase_43 | WA | - |
testcase_44 | WA | - |
testcase_45 | WA | - |
testcase_46 | WA | - |
testcase_47 | WA | - |
testcase_48 | WA | - |
testcase_49 | WA | - |
testcase_50 | WA | - |
testcase_51 | WA | - |
testcase_52 | AC | 262 ms
51,140 KB |
testcase_53 | AC | 263 ms
51,220 KB |
testcase_54 | AC | 265 ms
51,216 KB |
testcase_55 | WA | - |
testcase_56 | AC | 253 ms
8,348 KB |
testcase_57 | AC | 252 ms
8,384 KB |
testcase_58 | AC | 254 ms
35,072 KB |
testcase_59 | AC | 425 ms
22,800 KB |
testcase_60 | AC | 96 ms
8,668 KB |
testcase_61 | AC | 253 ms
8,384 KB |
testcase_62 | AC | 13 ms
6,940 KB |
testcase_63 | AC | 281 ms
10,340 KB |
testcase_64 | AC | 281 ms
12,448 KB |
testcase_65 | AC | 281 ms
9,312 KB |
testcase_66 | AC | 250 ms
8,384 KB |
testcase_67 | AC | 337 ms
15,136 KB |
testcase_68 | AC | 247 ms
8,384 KB |
testcase_69 | AC | 335 ms
16,676 KB |
ソースコード
package main import ( "bufio" "fmt" "os" ) // 顺序遍历每个单词,问之前是否见过类似的单词. // // `类似`: 最多交换一次相邻字符,可以得到相同的单词. // n<=2e5 sum(len(s))<=1e6 func ConditionalReflection(words []string) []bool { R := NewRollingHash(13331, 1e9+9) res := make([]bool, len(words)) visited := make(map[uint]struct{}) for i := 0; i < len(words); i++ { m := len(words[i]) word := words[i] table := R.Build(word) hashes := []uint{R.Query(table, 0, m)} // 不交换 for j := 0; j < m-1; j++ { // 交换 newWord := string(word[j+1]) + string(word[j]) mid := R.Query(R.Build(newWord), 0, 2) left := R.Query(table, 0, j) right := R.Query(table, j+2, m) left = R.Combine(left, mid, 2) left = R.Combine(left, right, m-j-2) hashes = append(hashes, left) } for _, h := range hashes { if _, ok := visited[h]; ok { res[i] = true break } } visited[hashes[0]] = struct{}{} } return res } func main() { // https://yukicoder.me/problems/no/2102 in := bufio.NewReader(os.Stdin) out := bufio.NewWriter(os.Stdout) defer out.Flush() var n int fmt.Fscan(in, &n) words := make([]string, n) for i := 0; i < n; i++ { fmt.Fscan(in, &words[i]) } res := ConditionalReflection(words) for i := 0; i < n; i++ { if res[i] { fmt.Fprintln(out, "Yes") } else { fmt.Fprintln(out, "No") } } } type S = string func GetHash(s S, base uint, mod uint) uint { if len(s) == 0 { return 0 } res := uint(0) for i := 0; i < len(s); i++ { res = (res*base + uint(s[i])) % mod } return res } type RollingHash struct { base uint mod uint power []uint } // 131/13331/1713302033171(回文素数) func NewRollingHash(base uint, mod uint) *RollingHash { return &RollingHash{ base: base, mod: mod, power: []uint{1}, } } func (r *RollingHash) Build(s S) (hashTable []uint) { sz := len(s) hashTable = make([]uint, sz+1) for i := 0; i < sz; i++ { hashTable[i+1] = (hashTable[i]*r.base + uint(s[i])) % r.mod } return hashTable } func (r *RollingHash) Query(sTable []uint, start, end int) uint { r.expand(end - start) return (r.mod + sTable[end] - sTable[start]*r.power[end-start]%r.mod) % r.mod } func (r *RollingHash) Combine(h1, h2 uint, h2len int) uint { r.expand(h2len) return (h1*r.power[h2len] + h2) % r.mod } func (r *RollingHash) AddChar(hash uint, c byte) uint { return (hash*r.base + uint(c)) % r.mod } // 两个字符串的最长公共前缀长度. func (r *RollingHash) LCP(sTable []uint, start1, end1 int, tTable []uint, start2, end2 int) int { len1 := end1 - start1 len2 := end2 - start2 len := min(len1, len2) low := 0 high := len + 1 for high-low > 1 { mid := (low + high) / 2 if r.Query(sTable, start1, start1+mid) == r.Query(tTable, start2, start2+mid) { low = mid } else { high = mid } } return low } func (r *RollingHash) expand(sz int) { if len(r.power) < sz+1 { preSz := len(r.power) r.power = append(r.power, make([]uint, sz+1-preSz)...) for i := preSz - 1; i < sz; i++ { r.power[i+1] = (r.power[i] * r.base) % r.mod } } } func min(a, b int) int { if a < b { return a } return b }