結果
問題 | No.1977 Extracting at Constant Intervals |
ユーザー |
👑 |
提出日時 | 2022-06-16 23:17:43 |
言語 | D (dmd 2.109.1) |
結果 |
AC
|
実行時間 | 20 ms / 2,000 ms |
コード長 | 2,482 bytes |
コンパイル時間 | 903 ms |
コンパイル使用メモリ | 121,568 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-22 15:27:03 |
合計ジャッジ時間 | 3,165 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 31 |
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)); }enum INF = 10L^^18;void main() {try {for (; ; ) {const N = readInt;const M = readLong;const L = readLong;auto A = new long[N];foreach (i; 0 .. N) {A[i] = readLong;}const G = cast(int)(gcd(N, L));const H = N / G;auto js = new int[N];auto sumss = new long[][](G, H + 1);foreach (i0; 0 .. G) {foreach (j; 0 .. H) {const i = cast(int)((i0 + L * j) % N);js[i] = j;sumss[i0][j + 1] = sumss[i0][j] + A[i];}}debug {writeln("js = ", js);writeln("sumss = ", sumss);}long get(long start, long num) {const i = cast(int)(start % N);const i0 = i % G;long ret;ret += ((js[i] + num) / H) * sumss[i0][H] + sumss[i0][(js[i] + num) % H];ret -= sumss[i0][js[i]];debug {writeln(start, " ", num, ": ", ret);}return ret;}const Q = (N * M) / L;const R = (N * M) % L;long ans = -INF;foreach (x; 0 .. min(N, R)) {chmax(ans, get(x, Q + 1));}foreach (x; max(L - N, R) .. L) {chmax(ans, get(x, Q));}writeln(ans);}} catch (EOFException e) {}}