結果
問題 | No.1530 Permutation and Popcount |
ユーザー |
👑 |
提出日時 | 2021-06-04 21:25:07 |
言語 | D (dmd 2.109.1) |
結果 |
AC
|
実行時間 | 54 ms / 2,000 ms |
コード長 | 2,571 bytes |
コンパイル時間 | 906 ms |
コンパイル使用メモリ | 123,368 KB |
実行使用メモリ | 64,436 KB |
最終ジャッジ日時 | 2024-06-22 11:24:09 |
合計ジャッジ時間 | 3,763 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 41 |
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)); }void main() {try {for (; ; ) {const N = readInt();const M = readInt();auto gains = new int[N + 1];foreach (u; 1 .. N + 1) {foreach (v; 1 .. N + 1) {if (popcnt(u * v) % 2 == 0) {++gains[u];}}}const all = gains.sum;auto prv = new int[][](N + 1, all + 1);prv[0][0] = -1;foreach (u; 1 .. N + 1) {foreach (x; 0 .. all + 1) {if (prv[u - 1][x]) {prv[u][x] = 1;prv[u][x + gains[u]] = 2;}}}foreach (x0; 0 .. all + 1) {if (M == -all + 2 * x0 && prv[N][x0]) {auto ans = new int[][2];for (int u = N, x = x0; u > 0; --u) {switch (prv[u][x]) {case 1: {ans[1] ~= u;} break;case 2: {ans[0] ~= u;x -= gains[u];} break;default: assert(false);}}writeln(ans[0].length, " ", ans[1].length);foreach (h; 0 .. 2) {foreach (index, u; ans[h]) {if (index > 0) write(" ");write(u);}writeln;}goto found;}}writeln(-1);found:}} catch (EOFException e) {}}