結果
問題 | No.766 金魚すくい |
ユーザー | 👑 hos.lyric |
提出日時 | 2019-04-04 20:13:24 |
言語 | D (dmd 2.106.1) |
結果 |
AC
|
実行時間 | 54 ms / 1,500 ms |
コード長 | 2,968 bytes |
コンパイル時間 | 1,185 ms |
コンパイル使用メモリ | 127,880 KB |
実行使用メモリ | 22,972 KB |
最終ジャッジ日時 | 2024-06-13 04:48:52 |
合計ジャッジ時間 | 4,238 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 17 ms
14,420 KB |
testcase_01 | AC | 17 ms
15,712 KB |
testcase_02 | AC | 18 ms
14,460 KB |
testcase_03 | AC | 16 ms
14,412 KB |
testcase_04 | AC | 16 ms
14,556 KB |
testcase_05 | AC | 16 ms
16,272 KB |
testcase_06 | AC | 16 ms
16,316 KB |
testcase_07 | AC | 17 ms
15,796 KB |
testcase_08 | AC | 17 ms
14,728 KB |
testcase_09 | AC | 17 ms
15,812 KB |
testcase_10 | AC | 16 ms
14,480 KB |
testcase_11 | AC | 17 ms
15,964 KB |
testcase_12 | AC | 16 ms
14,520 KB |
testcase_13 | AC | 18 ms
14,596 KB |
testcase_14 | AC | 17 ms
14,752 KB |
testcase_15 | AC | 18 ms
14,756 KB |
testcase_16 | AC | 17 ms
15,272 KB |
testcase_17 | AC | 17 ms
14,596 KB |
testcase_18 | AC | 17 ms
15,076 KB |
testcase_19 | AC | 17 ms
16,020 KB |
testcase_20 | AC | 18 ms
15,984 KB |
testcase_21 | AC | 18 ms
14,548 KB |
testcase_22 | AC | 18 ms
16,096 KB |
testcase_23 | AC | 51 ms
22,492 KB |
testcase_24 | AC | 51 ms
20,136 KB |
testcase_25 | AC | 53 ms
22,972 KB |
testcase_26 | AC | 50 ms
21,676 KB |
testcase_27 | AC | 53 ms
21,836 KB |
testcase_28 | AC | 50 ms
20,312 KB |
testcase_29 | AC | 49 ms
20,844 KB |
testcase_30 | AC | 49 ms
21,948 KB |
testcase_31 | AC | 54 ms
22,328 KB |
testcase_32 | AC | 51 ms
20,376 KB |
testcase_33 | AC | 52 ms
22,076 KB |
testcase_34 | AC | 51 ms
20,356 KB |
testcase_35 | AC | 16 ms
14,436 KB |
testcase_36 | AC | 16 ms
14,436 KB |
testcase_37 | AC | 53 ms
20,384 KB |
testcase_38 | AC | 50 ms
20,328 KB |
testcase_39 | AC | 53 ms
22,452 KB |
testcase_40 | AC | 50 ms
22,416 KB |
testcase_41 | AC | 33 ms
19,884 KB |
testcase_42 | AC | 32 ms
20,272 KB |
testcase_43 | AC | 17 ms
15,984 KB |
testcase_44 | AC | 16 ms
14,472 KB |
ソースコード
import std.conv, std.functional, std.stdio, std.string; import std.algorithm, std.array, std.bigint, std.container, std.math, std.numeric, std.range, 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 MO = 10L^^9 + 7; enum LIM = 3 * 10^^5; long[] inv, fac, invFac; void prepare() { inv = new long[LIM]; fac = new long[LIM]; invFac = new long[LIM]; inv[1] = 1; foreach (i; 2 .. LIM) { inv[i] = MO - ((MO / i) * inv[cast(size_t)(MO % i)]) % MO; } fac[0] = invFac[0] = 1; foreach (i; 1 .. LIM) { fac[i] = (fac[i - 1] * i) % MO; invFac[i] = (invFac[i - 1] * inv[i]) % MO; } } long binom(long n, long k) { if (0 <= k && k <= n) { assert(n < LIM); return fac[cast(size_t)(n)] * invFac[cast(size_t)(k)] % MO * invFac[cast(size_t)(n - k)] % MO; } else { return 0; } } int N, M; long P; long[] V; void main() { prepare(); try { for (; ; ) { N = readInt(); M = readInt(); P = readLong(); V = new long[N]; foreach (i; 0 .. N) { V[i] = readLong(); } V.sort; V.reverse; auto PP = new long[LIM]; auto QQ = new long[LIM]; PP[0] = QQ[0] = 1; PP[1] = (P * inv[100]) % MO; QQ[1] = 1 - PP[1]; foreach (j; 2 .. LIM) { PP[j] = (PP[j - 1] * PP[1]) % MO; QQ[j] = (QQ[j - 1] * QQ[1]) % MO; } // (M, 0), (M, 1), ... or (0, N), (1, N), ... auto prob = new long[N + 1]; prob[0] = PP[M]; foreach (i; 1 .. N) { prob[i] = ((binom(M + i, M) - binom(M + i - 1, M)) * ((PP[M] * QQ[i]) % MO)) % MO; } prob[N] = 1; foreach (i; 0 .. N) { prob[N] -= prob[i]; prob[N] %= MO; } auto VSum = new long[N + 1]; foreach (i; 0 .. N) { VSum[i + 1] = (VSum[i] + V[i]) % MO; } long ans; foreach (i; 0 .. N + 1) { ans += prob[i] * VSum[i]; ans %= MO; } ans = (ans % MO + MO) % MO; writeln(ans); } } catch (EOFException e) { } }