結果
問題 | No.577 Prime Powerful Numbers |
ユーザー | 👑 hos.lyric |
提出日時 | 2019-04-20 16:57:46 |
言語 | D (dmd 2.106.1) |
結果 |
TLE
|
実行時間 | - |
コード長 | 3,342 bytes |
コンパイル時間 | 962 ms |
コンパイル使用メモリ | 120,940 KB |
実行使用メモリ | 13,752 KB |
最終ジャッジ日時 | 2024-06-22 00:51:33 |
合計ジャッジ時間 | 5,059 ms |
ジャッジサーバーID (参考情報) |
judge4 / 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 | 310 ms
13,752 KB |
testcase_01 | TLE | - |
testcase_02 | -- | - |
testcase_03 | -- | - |
testcase_04 | -- | - |
testcase_05 | -- | - |
testcase_06 | -- | - |
testcase_07 | -- | - |
testcase_08 | -- | - |
testcase_09 | -- | - |
testcase_10 | -- | - |
ソースコード
import std.conv, std.functional, std.stdio, std.string; import std.algorithm, std.array, std.bigint, std.complex, 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)); } // a b (mod m) ulong multiply(ulong a, ulong b, ulong m) in { assert(m < 1UL << 63, "multiply: m < 2^63 must hold"); assert(a < m, "multiply: a < m must hold"); assert(b < m, "multiply: b < m must hold"); } do { ulong c = 0; for (; a; a >>= 1) { if (a & 1) { c += b; if (c >= m) c -= m; } b <<= 1; if (b >= m) b -= m; } return c; } // a^e (mod m) ulong power(ulong a, ulong e, ulong m) in { assert(m < 1UL << 63, "power: m < 2^63 must hold"); assert(a < m, "power: a < m must hold"); } do { long b = 1; for (; e; e >>= 1) { if (e & 1) b = multiply(b, a, m); a = multiply(a, a, m); } return b; } // Checks if n is a prime using Miller-Rabin test bool isPrime(ulong n) in { assert(n < 1UL << 63, "isPrime: n < 2^63 must hold"); } do { import core.bitop : bsf; // http://miller-rabin.appspot.com/ enum ulong[] BASES = [2, 325, 9375, 28178, 450775, 9780504, 1795265022]; if (n <= 1 || !(n & 1)) return (n == 2); const s = bsf(n - 1); const d = (n - 1) >> s; foreach (base; BASES) { ulong a = base % n; if (a == 0) continue; a = power(a, d, n); if (a == 1 || a == n - 1) continue; bool ok = false; foreach (_; 0 .. s - 1) { a = multiply(a, a, n); if (a == n - 1) { ok = true; break; } } if (!ok) return false; } return true; } void main() { try { for (; ; ) { const numCases = readInt(); foreach (caseId; 0 .. numCases) { const N = readLong(); bool ans; if (N % 2 == 0) { ans = (N >= 4); } else { for (long a = 1; (1L << a) < N; ++a) { for (long b = 1; (1L << b) < N; ++b) { const m = N - (1L << a); long lo = 0, hi = m; for (; lo + 1 < hi; ) { const mid = (lo + hi) / 2; (BigInt(mid)^^b >= m) ? (hi = mid) : (lo = mid); } if (BigInt(hi)^^b == m) { if (isPrime(hi)) { ans = true; } } } } } writeln(ans ? "Yes" : "No"); } } } catch (EOFException e) { } }