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 16:42:16 |
言語 | Go (1.22.1) |
結果 |
AC
|
実行時間 | 326 ms / 3,000 ms |
コード長 | 3,068 bytes |
コンパイル時間 | 13,450 ms |
コンパイル使用メモリ | 220,056 KB |
実行使用メモリ | 58,880 KB |
最終ジャッジ日時 | 2024-09-27 07:41:59 |
合計ジャッジ時間 | 31,299 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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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 | 1 ms
5,376 KB |
testcase_02 | AC | 173 ms
15,872 KB |
testcase_03 | AC | 226 ms
17,920 KB |
testcase_04 | AC | 182 ms
14,208 KB |
testcase_05 | AC | 131 ms
12,544 KB |
testcase_06 | AC | 193 ms
15,616 KB |
testcase_07 | AC | 193 ms
11,340 KB |
testcase_08 | AC | 48 ms
6,656 KB |
testcase_09 | AC | 193 ms
14,592 KB |
testcase_10 | AC | 86 ms
8,664 KB |
testcase_11 | AC | 75 ms
8,120 KB |
testcase_12 | AC | 151 ms
13,056 KB |
testcase_13 | AC | 247 ms
18,688 KB |
testcase_14 | AC | 152 ms
13,632 KB |
testcase_15 | AC | 221 ms
21,476 KB |
testcase_16 | AC | 299 ms
20,480 KB |
testcase_17 | AC | 130 ms
9,776 KB |
testcase_18 | AC | 224 ms
14,132 KB |
testcase_19 | AC | 119 ms
12,556 KB |
testcase_20 | AC | 262 ms
19,072 KB |
testcase_21 | AC | 90 ms
11,392 KB |
testcase_22 | AC | 315 ms
22,936 KB |
testcase_23 | AC | 324 ms
23,936 KB |
testcase_24 | AC | 324 ms
24,576 KB |
testcase_25 | AC | 319 ms
24,692 KB |
testcase_26 | AC | 310 ms
23,784 KB |
testcase_27 | AC | 318 ms
24,112 KB |
testcase_28 | AC | 324 ms
22,764 KB |
testcase_29 | AC | 312 ms
23,168 KB |
testcase_30 | AC | 317 ms
23,844 KB |
testcase_31 | AC | 322 ms
23,168 KB |
testcase_32 | AC | 315 ms
23,012 KB |
testcase_33 | AC | 317 ms
22,888 KB |
testcase_34 | AC | 325 ms
24,704 KB |
testcase_35 | AC | 320 ms
23,680 KB |
testcase_36 | AC | 326 ms
22,764 KB |
testcase_37 | AC | 320 ms
23,164 KB |
testcase_38 | AC | 319 ms
23,680 KB |
testcase_39 | AC | 325 ms
22,656 KB |
testcase_40 | AC | 316 ms
22,144 KB |
testcase_41 | AC | 321 ms
23,564 KB |
testcase_42 | AC | 285 ms
17,152 KB |
testcase_43 | AC | 288 ms
17,024 KB |
testcase_44 | AC | 281 ms
17,236 KB |
testcase_45 | AC | 282 ms
17,748 KB |
testcase_46 | AC | 280 ms
20,056 KB |
testcase_47 | AC | 221 ms
12,912 KB |
testcase_48 | AC | 226 ms
12,868 KB |
testcase_49 | AC | 222 ms
14,208 KB |
testcase_50 | AC | 217 ms
12,928 KB |
testcase_51 | AC | 216 ms
12,444 KB |
testcase_52 | AC | 142 ms
51,216 KB |
testcase_53 | AC | 144 ms
58,880 KB |
testcase_54 | AC | 141 ms
51,392 KB |
testcase_55 | AC | 140 ms
6,784 KB |
testcase_56 | AC | 142 ms
6,908 KB |
testcase_57 | AC | 141 ms
6,756 KB |
testcase_58 | AC | 140 ms
36,736 KB |
testcase_59 | AC | 324 ms
21,544 KB |
testcase_60 | AC | 76 ms
8,960 KB |
testcase_61 | AC | 141 ms
6,784 KB |
testcase_62 | AC | 9 ms
5,376 KB |
testcase_63 | AC | 177 ms
9,088 KB |
testcase_64 | AC | 176 ms
9,088 KB |
testcase_65 | AC | 178 ms
9,316 KB |
testcase_66 | AC | 138 ms
6,784 KB |
testcase_67 | AC | 240 ms
15,488 KB |
testcase_68 | AC | 140 ms
6,784 KB |
testcase_69 | AC | 244 ms
16,000 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) 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) uint { if len(s) == 0 { return 0 } res := uint(0) for i := 0; i < len(s); i++ { res = res*base + uint(s[i]) } return res } type RollingHash struct { base uint power []uint } // 131/13331/1713302033171(回文素数) func NewRollingHash(base uint) *RollingHash { return &RollingHash{ base: base, 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]) } return hashTable } func (r *RollingHash) Query(sTable []uint, start, end int) uint { r.expand(end - start) return sTable[end] - sTable[start]*r.power[end-start] } func (r *RollingHash) Combine(h1, h2 uint, h2len int) uint { r.expand(h2len) return h1*r.power[h2len] + h2 } func (r *RollingHash) AddChar(hash uint, c byte) uint { return hash*r.base + uint(c) } // 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 } } } func min(a, b int) int { if a < b { return a } return b }