結果
問題 | No.2066 Simple Math ! |
ユーザー | 👑 hos.lyric |
提出日時 | 2022-09-02 22:40:59 |
言語 | D (dmd 2.106.1) |
結果 |
AC
|
実行時間 | 263 ms / 2,000 ms |
コード長 | 2,993 bytes |
コンパイル時間 | 1,024 ms |
コンパイル使用メモリ | 121,864 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-22 16:11:29 |
合計ジャッジ時間 | 7,388 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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
6,812 KB |
testcase_01 | AC | 21 ms
6,940 KB |
testcase_02 | AC | 30 ms
6,940 KB |
testcase_03 | AC | 18 ms
6,940 KB |
testcase_04 | AC | 258 ms
6,944 KB |
testcase_05 | AC | 257 ms
6,940 KB |
testcase_06 | AC | 258 ms
6,940 KB |
testcase_07 | AC | 259 ms
6,944 KB |
testcase_08 | AC | 255 ms
6,940 KB |
testcase_09 | AC | 261 ms
6,944 KB |
testcase_10 | AC | 263 ms
6,940 KB |
testcase_11 | AC | 258 ms
6,940 KB |
testcase_12 | AC | 254 ms
6,940 KB |
testcase_13 | AC | 257 ms
6,940 KB |
testcase_14 | AC | 245 ms
6,944 KB |
testcase_15 | AC | 244 ms
6,940 KB |
testcase_16 | AC | 245 ms
6,940 KB |
testcase_17 | AC | 244 ms
6,940 KB |
testcase_18 | AC | 246 ms
6,940 KB |
testcase_19 | AC | 81 ms
6,944 KB |
testcase_20 | AC | 79 ms
6,944 KB |
testcase_21 | AC | 81 ms
6,940 KB |
testcase_22 | AC | 80 ms
6,944 KB |
testcase_23 | AC | 83 ms
6,940 KB |
testcase_24 | AC | 184 ms
6,944 KB |
testcase_25 | AC | 188 ms
6,940 KB |
testcase_26 | AC | 187 ms
6,944 KB |
testcase_27 | AC | 189 ms
6,944 KB |
testcase_28 | AC | 190 ms
6,940 KB |
testcase_29 | AC | 44 ms
6,944 KB |
testcase_30 | AC | 28 ms
6,940 KB |
testcase_31 | AC | 42 ms
6,944 KB |
コンパイルメッセージ
/home/linuxbrew/.linuxbrew/opt/dmd/include/dlang/dmd/std/numeric.d(2999): Warning: cannot inline function `std.numeric.gcdImpl!ulong.gcdImpl`
ソースコード
import std.conv, std.functional, std.range, std.stdio, std.string; import std.algorithm, std.array, std.bigint, std.bitmanip, std.complex, std.container, std.math, std.mathspecial, std.numeric, 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)); } // floor(a / b) Int divFloor(Int)(Int a, Int b) { return a / b - (((a ^ b) < 0 && a % b != 0) ? 1 : 0); } long choose2(long n) { return (n & 1) ? (n * ((n - 1) / 2)) : ((n / 2) * (n - 1)); } // sum_{x=l}^r floor((a x + b) / m) // m > 0 long sumFloors(long m, long a, long b, long l, long r) in { assert(m > 0, "sumFloors: m > 0 must hold"); } do { long sum; for (; l <= r; ) { const q = divFloor(a, m); const aa = a - q * m; const ll = divFloor(aa * l + b, m) + 1; const rr = divFloor(aa * r + b, m); // sum += q * ((r + 1) * r / 2 - l * (l - 1) / 2) + r * rr - (l - 1) * (ll - 1) + (rr - ll + 1); sum += q * (choose2(r + 1) - choose2(l)) + r * rr - (l - 1) * (ll - 1) + (rr - ll + 1); a = m; m = aa; l = -rr; r = -ll; } return sum; } void main() { try { for (; ; ) { const numCases = readInt; foreach (caseId; 0 .. numCases) { long P = readLong; long Q = readLong; const K = readLong; const G = gcd(P, Q); P /= G; Q /= G; long lo = -1, hi = min(P, Q) * K + 1; for (; lo + 1 < hi; ) { const mid = (lo + hi) / 2; // <= mid const num = sumFloors(Q, -P, mid + Q, 0, min(mid / P, Q - 1)); debug { writeln(" ", mid, ": ", num); } ((num >= K + 1) ? hi : lo) = mid; } long ans = hi; ans *= G; writeln(ans); debug { long[] ns; foreach (x; 0 .. K + 1) foreach (y; 0 .. K + 1) { ns ~= (P * x + Q * y); } ns = ns.sort.uniq.array; long brt = ns[cast(int)(K)]; brt *= G; writeln("brt = ", brt); assert(brt == ans); } } } } catch (EOFException e) { } }