結果
| 問題 |
No.3058 Deque and Brackets
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2025-03-14 22:37:22 |
| 言語 | D (dmd 2.109.1) |
| 結果 |
AC
|
| 実行時間 | 290 ms / 2,000 ms |
| コード長 | 3,242 bytes |
| コンパイル時間 | 3,431 ms |
| コンパイル使用メモリ | 147,844 KB |
| 実行使用メモリ | 16,248 KB |
| 最終ジャッジ日時 | 2025-03-14 22:37:35 |
| 合計ジャッジ時間 | 8,676 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 22 |
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)); }
enum INF = 10L^^18;
void main() {
try {
for (; ; ) {
const N = readInt;
auto C = new char[2*N];
auto L = new long[2*N];
auto R = new long[2*N];
foreach (i; 0 .. 2*N) {
C[i] = readToken[0];
L[i] = readLong;
R[i] = readLong;
}
auto ds = new int[2*N + 1];
foreach (i; 0 .. 2*N) {
ds[i + 1] = ds[i] + ((C[i] == ')') ? -1 : +1);
}
debug {
auto dp = new long[][2*N + 1];
foreach (i; 0 .. 2*N + 1) {
dp[i] = new long[N + 1];
dp[i][] = -INF;
}
dp[0][0] = 0;
foreach (i; 0 .. 2*N) {
foreach (u; 0 .. N + 1) if (dp[i][u] >= 0) {
int vL, vR;
if (C[i] == '(') {
vL = (u == 0) ? u : (u - 1);
vR = u;
} else {
vL = u + 1;
vR = (u == -ds[i]) ? (u + 1) : u;
}
chmax(dp[i + 1][vL], dp[i][u] + L[i]);
chmax(dp[i + 1][vR], dp[i][u] + R[i]);
}
}
foreach (i; 0 .. 2*N + 1) {
writeln(i, ": ", ds[i], " ", dp[i]);
}
const brt = dp[2*N][0];
writeln("brt = ", brt);
}
int uL, uR;
auto slopes = new RedBlackTree!(long, "a < b", true);
long ans;
foreach (i; 0 .. 2*N) {
debug writeln([uL, uR], " ", slopes, " ", ans);
if (C[i] == '(') {
assert(0 <= uL);
slopes.insert(R[i] - L[i]);
ans += L[i];
if (0 == uL) {
const s = slopes.back;
slopes.removeKey(s);
ans += max(s, 0);
} else {
--uL;
}
} else {
assert(-ds[i] <= uL);
slopes.insert(L[i] - R[i]);
ans += R[i];
if (-ds[i] == uL) {
const s = slopes.back;
slopes.removeKey(s);
ans += max(s, 0);
++uL;
}
++uR;
}
}
writeln(ans);
}
} catch (EOFException e) {
}
}