結果
| 問題 |
No.214 素数サイコロと合成数サイコロ (3-Medium)
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2019-01-10 20:10:56 |
| 言語 | D (dmd 2.109.1) |
| 結果 |
AC
|
| 実行時間 | 731 ms / 3,000 ms |
| コード長 | 3,642 bytes |
| コンパイル時間 | 797 ms |
| コンパイル使用メモリ | 118,912 KB |
| 実行使用メモリ | 13,056 KB |
| 最終ジャッジ日時 | 2024-06-13 02:35:40 |
| 合計ジャッジ時間 | 4,182 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 3 |
ソースコード
import std.conv, std.stdio, std.string;
import std.algorithm, std.array, std.bigint, std.container, std.math, 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[0]; tokens.popFront; return token; }
int readInt() { return readToken().to!int; }
long readLong() { return readToken().to!long; }
real readReal() { return readToken().to!real; }
void chmin(T)(ref T t, in T f) { if (t > f) t = f; }
void chmax(T)(ref T t, in T f) { if (t < f) t = f; }
int binarySearch(T)(in T[] as, in bool delegate(T) test) { int low = -1, upp = cast(int)(as.length); for (; low + 1 < upp; ) { int mid = (low + upp) >> 1; (test(as[mid]) ? low : upp) = mid; } return upp; }
int lowerBound(T)(in T[] as, in T val) { return as.binarySearch((T a) => (a < val)); }
int upperBound(T)(in T[] as, in T val) { return as.binarySearch((T a) => (a <= val)); }
immutable MO = 10L^^9 + 7;
immutable A = [2,3,5,7,11,13];
immutable B = [4,6,8,9,10,12];
immutable L = (A[$ - 1] + B[$ - 1]) * 50;
long[] getPatterns(int num, in int[] die) {
const lim = num * die.maxElement;
const len = cast(int)(die.length);
auto dp = new long[][][](num + 1, lim + 1, len);
dp[0][0][0] = 1;
foreach (h; 0 .. num) foreach (i; 0 .. lim + 1) {
auto dpSum = dp[h][i].dup;
foreach (pos; 1 .. len) {
(dpSum[pos] += dpSum[pos - 1]) %= MO;
}
foreach (pos; 0 .. len) {
if (i + die[pos] <= lim) {
(dp[h + 1][i + die[pos]][pos] += dpSum[pos]) %= MO;
}
}
}
auto ret = new long[lim + 1];
foreach (i; 0 .. lim + 1) {
ret[i] = dp[num][i].sum;
}
return ret;
}
long N;
int P, Q;
void main() {
try {
for (; ; ) {
N = readLong();
P = readInt();
Q = readInt();
const patA = getPatterns(P, A);
const patB = getPatterns(Q, B);
auto coef = new long[L + 1];
foreach (i, pA; patA) foreach (j, pB; patB) {
(coef[i + j] += pA * pB) %= MO;
}
debug {
writeln(patA[0 .. min($, 60)]);
writeln(patB[0 .. min($, 60)]);
writeln(coef[0 .. min($, 60)]);
writeln("|supp coef| = ", coef.count!(c => (c != 0)));
}
long[] multiply(in long[] a, in long[] b) {
auto ret = new long[2 * L];
foreach (i; 0 .. L) foreach (j; 0 .. L) {
(ret[i + j] += a[i] * b[j]) %= MO;
}
foreach_reverse (i; L .. 2 * L) {
foreach (j; 1 .. L + 1) {
if (coef[j] != 0) {
(ret[i - j] += coef[j] * ret[i]) %= MO;
}
}
}
ret.length = L;
return ret;
}
/*
auto x = new long[L];
auto y = new long[L];
x[1] = 1;
y[0] = 1;
for (long n = N + L - 1; n; n >>= 1) {
if (n & 1) {
y = multiply(y, x);
}
x = multiply(x, x);
}
long ans = y.sum;
*/
long[] power(long e) {
if (e < L) {
auto ret = new long[L];
ret[cast(int)(e)] = 1;
return ret;
}
auto b = power(e >> 1);
if (e & 1) {
b = [0L] ~ multiply(b, b);
foreach (j; 1 .. L + 1) {
(b[L - j] += coef[j] * b[L]) %= MO;
}
b.length = L;
} else {
b = multiply(b, b);
}
return b;
}
long ans = power(N + L - 1).sum;
ans = (ans % MO + MO) % MO;
writeln(ans);
}
} catch (EOFException e) {
}
}