結果
| 問題 |
No.3238 Shadow
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2025-08-15 21:39:25 |
| 言語 | D (dmd 2.109.1) |
| 結果 |
AC
|
| 実行時間 | 133 ms / 2,000 ms |
| コード長 | 2,366 bytes |
| コンパイル時間 | 732 ms |
| コンパイル使用メモリ | 106,848 KB |
| 実行使用メモリ | 16,028 KB |
| 最終ジャッジ日時 | 2025-08-15 21:39:46 |
| 合計ジャッジ時間 | 3,092 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 17 |
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; }
string COLOR(string s = "") { return "\x1b[" ~ s ~ "m"; }
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 bChmax(T)(T[] bit, int pos, T val)
in {
assert(0 <= pos && pos < bit.length, "bChmax: 0 <= pos < |bit| must hold");
}
do {
for (int x = pos; x < bit.length; x |= x + 1) {
chmax(bit[x], val);
}
}
// max of [0, pos)
T bMax(T)(T[] bit, int pos)
in {
assert(0 <= pos && pos <= bit.length, "bMax: 0 <= pos <= |bit| must hold");
}
do {
T ret = T.min;
for (int x = pos - 1; x >= 0; x = (x & (x + 1)) - 1) {
chmax(ret, bit[x]);
}
return ret;
}
void main() {
try {
for (; ; ) {
const N = readInt;
auto P = new int[N];
foreach (i; 0 .. N) P[i] = readInt - 1;
auto bit = new int[N];
bit[] = -1;
auto dp = new int[N];
foreach (i; 0 .. N) {
dp[i] = max(1 + bit.bMax(P[i]), 0);
bit.bChmax(P[i], dp[i]);
}
debug writeln(dp);
const M = dp.maxElement + 1;
auto xs = new int[M];
auto ys = new int[M];
xs[] = N;
ys[] = N;
foreach (i; 0 .. N) {
chmin(xs[dp[i]], i);
chmin(ys[dp[i]], P[i]);
}
foreach (m; 0 .. M) {
writeln(xs[m] + 1, " ", ys[m] + 1);
}
}
} catch (EOFException e) {
}
}