結果
問題 | No.3038 フィボナッチ数列の周期 |
ユーザー | 👑 hos.lyric |
提出日時 | 2019-03-31 18:27:29 |
言語 | D (dmd 2.106.1) |
結果 |
AC
|
実行時間 | 54 ms / 3,000 ms |
コード長 | 3,472 bytes |
コンパイル時間 | 1,109 ms |
コンパイル使用メモリ | 120,160 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-13 04:33:13 |
合計ジャッジ時間 | 2,712 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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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
6,816 KB |
testcase_01 | AC | 2 ms
6,812 KB |
testcase_02 | AC | 1 ms
6,940 KB |
testcase_03 | AC | 1 ms
6,940 KB |
testcase_04 | AC | 1 ms
6,940 KB |
testcase_05 | AC | 1 ms
6,940 KB |
testcase_06 | AC | 1 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 1 ms
6,944 KB |
testcase_09 | AC | 2 ms
6,940 KB |
testcase_10 | AC | 1 ms
6,940 KB |
testcase_11 | AC | 2 ms
6,944 KB |
testcase_12 | AC | 2 ms
6,944 KB |
testcase_13 | AC | 1 ms
6,944 KB |
testcase_14 | AC | 2 ms
6,940 KB |
testcase_15 | AC | 2 ms
6,940 KB |
testcase_16 | AC | 52 ms
6,940 KB |
testcase_17 | AC | 52 ms
6,940 KB |
testcase_18 | AC | 53 ms
6,940 KB |
testcase_19 | AC | 54 ms
6,940 KB |
testcase_20 | AC | 52 ms
6,940 KB |
testcase_21 | AC | 52 ms
6,940 KB |
testcase_22 | AC | 53 ms
6,940 KB |
testcase_23 | AC | 52 ms
6,944 KB |
testcase_24 | AC | 52 ms
6,940 KB |
ソースコード
import std.conv, std.functional, std.stdio, std.string; import std.algorithm, std.array, std.bigint, std.container, std.math, std.numeric, std.range, std.regex, std.typecons; import core.bitop; class EOFException : Throwable { this() { super("EOF"); } } string[] tokens; string readToken() { for (; tokens.empty; ) { if (stdin.eof) { throw new EOFException; } tokens = readln.split; } auto token = tokens.front; tokens.popFront; return token; } int readInt() { return readToken.to!int; } long readLong() { return readToken.to!long; } real readReal() { return readToken.to!real; } bool chmin(T)(ref T t, in T f) { if (t > f) { t = f; return true; } else { return false; } } bool chmax(T)(ref T t, in T f) { if (t < f) { t = f; return true; } else { return false; } } int binarySearch(alias pred, T)(in T[] as) { int lo = -1, hi = cast(int)(as.length); for (; lo + 1 < hi; ) { const mid = (lo + hi) >> 1; (unaryFun!pred(as[mid]) ? hi : lo) = mid; } return hi; } int lowerBound(T)(in T[] as, T val) { return as.binarySearch!(a => (a >= val)); } int upperBound(T)(in T[] as, T val) { return as.binarySearch!(a => (a > val)); } enum MO = 10L^^9 + 7; long power(long a, long e) { long x = a % MO, y = 1; for (; e; e >>= 1) { if (e & 1) { y = (y * x) % MO; } x = (x * x) % MO; } return y; } int N; long[] P, K; void main() { try { for (; ; ) { N = readInt(); P = new long[N]; K = new long[N]; foreach (i; 0 .. N) { P[i] = readLong(); K[i] = readLong(); } long[long] qlss; foreach (i; 0 .. N) { long[long] qls; if (P[i] == 2) { // 3 qls = [3: 1]; } else if (P[i] == 5) { // 20 qls = [2: 2, 5: 1]; } else { bool check(long e) { long[2] mul(in long[2] a, in long[2] b) { return [(a[0] * b[0] + a[1] * b[1]) % P[i], (a[0] * b[1] + a[1] * b[0] + a[1] * b[1]) % P[i]]; } long[2] x = [0, 1], y = [1, 0]; for (; e; e >>= 1) { if (e & 1) { y = mul(y, x); } x = mul(x, x); } return (y == [1, 0]); } long period; long m = (P[i] % 5 == 1 || P[i] % 5 == 4) ? (P[i] - 1) : (2 * (P[i] + 1)); for (long d = 1; d * d <= m; ++d) { if (m % d == 0) { if (check(d)) { period = d; break; } if (check(m / d)) { period = m / d; } } } assert(period > 0); for (long q = 2; q * q <= period; ++q) { if (period % q == 0) { long l; do { ++l; period /= q; } while (period % q == 0); qls[q] = l; } } if (period > 1) { qls[period] = 1; } } debug { writefln("period mod %s = %s", P[i], qls); } qls.update(P[i], () => (K[i] - 1), (ref long l) => (l + K[i] - 1)); foreach (q, l; qls) { qlss.update(q, () => l, (ref long lMax) => max(lMax, l)); } } debug { writeln(qlss); } long ans = 1; foreach (q, l; qlss) { ans *= power(q, l); ans %= MO; } writeln(ans); } } catch (EOFException e) { } }