結果

問題 No.1804 Intersection of LIS
ユーザー 👑 hos.lyric
提出日時 2022-01-15 19:42:13
言語 D
(dmd 2.109.1)
結果
AC  
実行時間 245 ms / 2,000 ms
コード長 2,599 bytes
コンパイル時間 931 ms
コンパイル使用メモリ 122,060 KB
実行使用メモリ 22,780 KB
最終ジャッジ日時 2024-06-22 14:04:21
合計ジャッジ時間 5,721 ms
ジャッジサーバーID
(参考情報)
judge1 / judge3
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 37
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

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;
auto P = new int[N];
foreach (i; 0 .. N) {
P[i] = readInt;
}
auto ls = new int[N];
auto rs = new int[N];
{
int[] lis;
foreach (i; 0 .. N) {
const pos = lis.lowerBound(P[i]);
ls[i] = pos + 1;
if (pos == lis.length) {
lis ~= P[i];
} else {
lis[pos] = P[i];
}
}
}
{
int[] lis;
foreach_reverse (i; 0 .. N) {
const pos = lis.lowerBound(-P[i]);
rs[i] = pos + 1;
if (pos == lis.length) {
lis ~= -P[i];
} else {
lis[pos] = -P[i];
}
}
}
const L = ls.maxElement;
auto mns = new int[L];
auto mxs = new int[L];
mns[] = N;
mxs[] = -1;
foreach (i; 0 .. N) {
if (ls[i] + rs[i] - 1 == L) {
chmin(mns[ls[i] - 1], i);
chmax(mxs[ls[i] - 1], i);
}
}
debug {
writeln("mns = ", mns);
writeln("mxs = ", mxs);
}
int[] ans;
foreach (j; 0 .. L) {
if (mns[j] == mxs[j]) {
ans ~= j;
}
}
writeln(ans.length);
foreach (index, j; ans) {
if (index) write(" ");
write(P[mns[j]]);
}
writeln;
}
} catch (EOFException e) {
}
}
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