結果
問題 | No.206 数の積集合を求めるクエリ |
ユーザー | 37zigen |
提出日時 | 2017-02-17 02:35:40 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 1,652 ms / 7,000 ms |
コード長 | 2,497 bytes |
コンパイル時間 | 3,064 ms |
コンパイル使用メモリ | 74,292 KB |
実行使用メモリ | 102,500 KB |
最終ジャッジ日時 | 2023-08-29 05:47:34 |
合計ジャッジ時間 | 28,272 ms |
ジャッジサーバーID (参考情報) |
judge15 / judge12 |
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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 | 123 ms
55,600 KB |
testcase_01 | AC | 125 ms
55,732 KB |
testcase_02 | AC | 125 ms
55,564 KB |
testcase_03 | AC | 122 ms
55,596 KB |
testcase_04 | AC | 129 ms
55,292 KB |
testcase_05 | AC | 137 ms
55,580 KB |
testcase_06 | AC | 225 ms
59,208 KB |
testcase_07 | AC | 221 ms
59,780 KB |
testcase_08 | AC | 229 ms
59,412 KB |
testcase_09 | AC | 229 ms
59,124 KB |
testcase_10 | AC | 128 ms
55,300 KB |
testcase_11 | AC | 147 ms
55,840 KB |
testcase_12 | AC | 318 ms
60,804 KB |
testcase_13 | AC | 296 ms
59,964 KB |
testcase_14 | AC | 293 ms
60,564 KB |
testcase_15 | AC | 281 ms
60,272 KB |
testcase_16 | AC | 286 ms
60,108 KB |
testcase_17 | AC | 1,167 ms
88,032 KB |
testcase_18 | AC | 1,106 ms
95,576 KB |
testcase_19 | AC | 1,091 ms
101,292 KB |
testcase_20 | AC | 1,071 ms
95,692 KB |
testcase_21 | AC | 1,084 ms
101,640 KB |
testcase_22 | AC | 1,142 ms
94,916 KB |
testcase_23 | AC | 1,115 ms
101,388 KB |
testcase_24 | AC | 1,577 ms
97,940 KB |
testcase_25 | AC | 1,652 ms
98,120 KB |
testcase_26 | AC | 1,489 ms
97,416 KB |
testcase_27 | AC | 1,492 ms
96,492 KB |
testcase_28 | AC | 1,601 ms
102,208 KB |
testcase_29 | AC | 1,623 ms
102,500 KB |
testcase_30 | AC | 1,531 ms
95,656 KB |
ソースコード
import java.util.*; class Main { static int L, M, N, Q; static int[] A, B; public static void main(String[] args) { Scanner sc = new Scanner(System.in); L = sc.nextInt(); M = sc.nextInt(); N = sc.nextInt(); int[] A = new int[N + 1]; int[] B = new int[N + 1]; for (int i = 0; i < L; ++i) { A[sc.nextInt()] = 1; } for (int i = 0; i < M; ++i) { B[N - sc.nextInt()] = 1; } Q = sc.nextInt(); Complex[] mul = mul(A, B); for (int i = 0; i < Q; ++i) { System.out.println(Math.round(mul[N + i].re)); } } static Complex[] mul(int[] a, int[] b) { int n = 1; while (n < a.length + b.length) n *= 2; Complex[] ac = new Complex[n]; Complex[] bc = new Complex[n]; for (int i = 0; i < n; ++i) { ac[i] = new Complex(0, 0); bc[i] = new Complex(0, 0); } for (int i = 0; i < a.length; ++i) { ac[i].re = a[i]; } for (int i = 0; i < b.length; ++i) { bc[i].re = b[i]; } ac = fft(ac, false); bc = fft(bc, false); for (int i = 0; i < ac.length; ++i) { ac[i] = ac[i].mul(bc[i]); } ac = fft(ac, true); for (int i = 0; i < ac.length; ++i) { ac[i].re /= n; ac[i].co /= n; } return ac; } static Complex[] fft(Complex[] a, boolean rev) { int n = a.length; if (n == 1) return a; int c = 0; for (int i = 1; i < n; ++i) { int j; for (j = n >> 1; j > (c ^= j); j >>= 1) ; if (c > i) { Complex tmp = a[c]; a[c] = a[i]; a[i] = tmp; } } for (int d = 1; d < n; d <<= 1) { for (int j = 0; j < d; ++j) { Complex mul = exp(2 * Math.PI / (2 * d) * (rev ? -1 : 1) * j); for (int pos = 0; pos < n; pos += 2 * d) { double ure = a[pos + j].re; double uco = a[pos + j].co; double vre = a[pos + j + d].re * mul.re - a[pos + j + d].co * mul.co; double vco = a[pos + j + d].co * mul.re + a[pos + j + d].re * mul.co; a[pos + j].re = ure + vre; a[pos + j].co = uco + vco; a[pos + j + d].re = ure - vre; a[pos + j + d].co = uco - vco; } } } return a; } static class Complex { double re, co; public Complex(double re, double co) { this.re = re; this.co = co; } Complex add(Complex o) { return new Complex(re + o.re, co + o.co); } Complex subtract(Complex o) { return new Complex(re - o.re, co - o.co); } Complex mul(Complex o) { return new Complex(re * o.re - co * o.co, re * o.co + o.re * co); } } static Complex exp(double theta) { return new Complex(Math.cos(theta), Math.sin(theta)); } }