結果
| 問題 |
No.2158 X日後に全完するhibit君
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2022-12-09 21:38:58 |
| 言語 | D (dmd 2.109.1) |
| 結果 |
AC
|
| 実行時間 | 492 ms / 2,000 ms |
| コード長 | 3,172 bytes |
| コンパイル時間 | 2,872 ms |
| コンパイル使用メモリ | 169,884 KB |
| 実行使用メモリ | 30,088 KB |
| 最終ジャッジ日時 | 2024-06-22 17:01:40 |
| 合計ジャッジ時間 | 5,179 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 25 |
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 K = readInt;
auto P = new int[N];
auto S = new int[N];
auto T = new int[N];
foreach (i; 0 .. N) {
P[i] = readInt;
S[i] = readInt;
T[i] = readInt;
}
const D = P.sum + 1;
auto f = new bool[][](D + 1, 6^^N);
auto g = new real[][](D + 1, 6^^N);
foreach (d; 0 .. D + 1) {
g[d][] = 0.0L;
}
{
int p;
foreach (i; 0 .. N) {
p += P[i] * 6^^i;
}
f[0][p] = true;
g[0][p] = 1.0L;
}
int mn = D, mx = -1;
real avg = 0.0L;
foreach (d; 0 .. D) {
foreach (p; 0 .. 6^^N) if (f[d][p]) {
auto xs = new int[N];
foreach (i; 0 .. N) {
xs[i] = p / 6^^i % 6;
}
foreach (q; 0 .. 1 << N) {
bool ok = true;
real prob = g[d][p];
int cost;
int pp = p;
foreach (i; 0 .. N) {
const cand = P[i] - min(K, d);
assert(xs[i] <= cand);
if (q >> i & 1) {
// new
ok = ok && (xs[i] >= 1);
prob *= cast(real)(xs[i]) / cand;
cost += S[i];
pp -= 6^^i;
} else {
// used
ok = ok && (xs[i] < cand);
prob *= cast(real)(cand - xs[i]) / cand;
cost += T[i];
}
}
if (ok) {
if (cost <= 60) {
chmin(mn, d);
chmax(mx, d);
avg += prob * d;
} else {
f[d + 1][pp] = true;
g[d + 1][pp] += prob;
}
}
}
}
}
if (mn <= mx) {
writefln("%s %s %.12f", mn + 1, mx + 1, avg + 1.0L);
} else {
writeln(-1);
}
}
} catch (EOFException e) {
}
}