結果
問題 | No.1095 Smallest Kadomatsu Subsequence |
ユーザー |
👑 |
提出日時 | 2020-06-26 22:01:53 |
言語 | D (dmd 2.109.1) |
結果 |
AC
|
実行時間 | 242 ms / 2,000 ms |
コード長 | 2,440 bytes |
コンパイル時間 | 1,681 ms |
コンパイル使用メモリ | 163,320 KB |
実行使用メモリ | 38,624 KB |
最終ジャッジ日時 | 2024-06-22 07:30:55 |
合計ジャッジ時間 | 4,802 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 * 30 |
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();auto A = new long[N];foreach (i; 0 .. N) {A[i] = readLong();}auto ls0 = new long[N];auto ls1 = new long[N];auto rs0 = new long[N];auto rs1 = new long[N];auto set = new RedBlackTree!long;set.clear;foreach (i; 0 .. N) {if (0 < i) {ls0[i] = (set.front < A[i]) ? set.front : INF;auto ran = set.upperBound(A[i]);ls1[i] = ran.empty ? INF : ran.front;}set.insert(A[i]);}set.clear;foreach_reverse (i; 0 .. N) {if (i < N - 1) {rs0[i] = (set.front < A[i]) ? set.front : INF;auto ran = set.upperBound(A[i]);rs1[i] = ran.empty ? INF : ran.front;}set.insert(A[i]);}debug {writeln("ls0 = ", ls0);writeln("ls1 = ", ls1);writeln("rs0 = ", rs0);writeln("rs1 = ", rs1);}long ans = INF;foreach (i; 1 .. N - 1) {chmin(ans, ls0[i] + A[i] + rs0[i]);chmin(ans, ls1[i] + A[i] + rs1[i]);}writeln((ans >= INF) ? -1 : ans);}} catch (EOFException e) {}}