QOJ.ac

QOJ

ID题目提交者结果用时内存语言文件大小提交时间测评时间
#101352#5031. 核zhoukangyang60 261ms28428kbC++174.3kb2023-04-29 11:01:122023-04-29 11:01:15

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-04-29 11:01:15]
  • 评测
  • 测评结果:60
  • 用时:261ms
  • 内存:28428kb
  • [2023-04-29 11:01:12]
  • 提交

answer

#include<bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")

#define L(i, j, k) for(int i = (j); i <= (k); ++i)
#define R(i, j, k) for(int i = (j); i >= (k); --i)
#define ll long long
#define vi vector <int>
#define sz(a) ((int) (a).size())
#define me(f, x) memset(f, x, sizeof(f))
#define uint unsigned int
#define ull unsigned long long 
#define bs bitset < N >
using namespace std;
const int N = 1e7 + 7;
int n, q, mod;
int pw[N], fac[N], ifac[N];
int qpow(int x, int y = mod - 2) {
	int res = 1;
	for(; y; x = (ll) x * x % mod, y >>= 1) if(y & 1) res = (ll) res * x % mod;
	return res;
}
void q_init(int x) {
	pw[0] = 1;
	L(i, 1, x) pw[i] = (ll) pw[i - 1] * q % mod;
	L(i, 1, x) fac[i] = pw[i] - 1;
	fac[0] = ifac[0] = 1;
	L(i, 1, x) 
		fac[i] = (ll) fac[i - 1] * fac[i] % mod;
	ifac[x] = qpow(fac[x]);
	R(i, x - 1, 0) 
		ifac[i] = (ll) ifac[i + 1] * (pw[i + 1] - 1) % mod;
} 
int q_C(int x, int y) {
	return x < y || y < 0 ? 0 : (ll) fac[x] * ifac[y] % mod * ifac[x - y] % mod;
}
inline int sgn(int x) {
	return (x & 1) ? mod - 1 : 1;
}

template < int L, int K > struct DBM {
	static const int R = (L + 1) * (K + 1);
	
	int lpos, a[R * 10 + 7];
	int G[R + 7][R + 7], cur[R + 7], ns[R + 7];
	int f[L + 2][K + 2], id[L + 2][K + 2], idt;
	inline void insert() {
		R(i, idt, 1) if(cur[i]) {
			if(!G[i][i]) {
				L(j, 1, i) 
					G[i][j] = cur[j];
			} 
			int iv = (ll) (mod - cur[i]) * qpow(G[i][i]) % mod;
			L(j, 1, i) 
				(cur[j] += (ll) iv * G[i][j] % mod) %= mod;
		}
	}
	void gauss(int *a, int n, int lpos = 0) {
		n = min(n, R * 10), idt = 0;
		L(i, 0, L) 
			L(j, 0, K) 
				id[i][j] = ++idt;
		L(i, L + 1, n) {
			L(j, 0, idt) 
				cur[j] = 0;
			L(x, 0, L) if(x < i) {
				int pw = a[i - x];
				L(y, 0, K) 
					cur[id[x][y]] = pw, 
					pw = (ll) pw * ::pw[lpos + i] % mod;
			}
			insert();
		}
		int pos = 1;
		while(G[pos][pos]) ++pos;
		ns[pos] = 1;
		if(pos > idt) {
			cout << "TAT" << endl;
			exit(0);
		}
		L(i, pos + 1, idt) {
			int s = 0;
			L(j, 1, i - 1) {
				(s += (ll) G[i][j] * ns[j] % mod) %= mod; 
			}
			ns[i] = (ll) (mod - s) * qpow(G[i][i]) % mod;
		}
		L(i, 0, L) 
			L(j, 0, K) 
				f[i][j] = ns[id[i][j]];
		L(i, L + 1, n) {
			L(j, 0, idt) 
				cur[j] = 0;
			int s = 0;
			L(x, 0, L) if(x < i) {
				int pw = a[i - x];
				L(y, 0, K) 
					(s += (ll) pw * f[x][y] % mod) %= mod, 
					pw = (ll) pw * ::pw[lpos + i] % mod;
			}
		}
	}
};

DBM < 2, 3 > S;

int f[N], g[N], ans[N], T[N], suf[N];
int Pw1[N], Pw2[N];
int main() {
	ios :: sync_with_stdio(false);
	cin.tie(0); cout.tie(0);
	cin >> n >> q >> mod;
//	n = 1e7, q = 998244353, mod = 1e9 + 7;
	q_init(n + 1);
//	cout << clock() << endl;
	int mn = min(n, 80);
	f[0] = 1;
	L(i, 1, mn) {
		f[i] = (ll) f[i - 1] * (pw[n] + mod - pw[n - i]) % mod;
	}
	L(i, 0, mn) {
		g[i] = (ll) sgn(i) * qpow(q, i * (i - 1) / 2) % mod;
	}
	L(i, 0, mn) {
		L(j, 0, mn - i) {
			(ans[i + j] += (ll) q_C(i + j, i) * f[i] % mod * g[j] % mod) %= mod; 
		}
	}
	L(i, 0, n) {
		ans[i] = (ll) ans[i] * q_C(n, i) % mod;
	}
	if(mn < n) S.gauss(ans, mn);
	
	L(i, mn + 1, n) {
		int pw = 1;
		unsigned long long t = 0;
		L(y, 0, 3) t += (ll) pw * S.f[0][y], pw = (ll) pw * ::pw[i] % mod;
		T[i] = t % mod;
	}
	suf[n + 1] = 1;
	R(i, n, mn + 1) 
		suf[i] = (ll) suf[i + 1] * T[i] % mod;
	int all = qpow(suf[mn + 1]);
	L(i, mn + 1, n) {
		unsigned long long s = 0;
		L(x, 1, 2) {
			int pw = ans[i - x];
			s += (ll) pw * S.f[x][0];
			pw = (ll) pw * ::pw[i] % mod;
			s += (ll) pw * S.f[x][1];
			pw = (ll) pw * ::pw[i] % mod;
			s += (ll) pw * S.f[x][2];
			pw = (ll) pw * ::pw[i] % mod;
			s += (ll) pw * S.f[x][3];
		}
		ans[i] = (ll) (mod - s % mod) * all % mod * suf[i + 1] % mod;
		all = (ll) all * T[i] % mod;
	}
	int pw = 1;
	L(i, 1, n) {
		pw = (ll) pw * q % (mod - 1);
	}
	const int K = sqrt(mod) + 1;
	Pw1[0] = Pw2[0] = 1;
	L(i, 1, K) {
		Pw1[i] = (ll) Pw1[i - 1] * 3 % mod;
	}
	L(i, 1, K) {
		Pw2[i] = (ll) Pw2[i - 1] * Pw1[K] % mod;
	}
	int s = 1;
	ull ns = 0;
	R(i, n, 0) {
		int w = (ll) Pw1[s % K] * Pw2[s / K] % mod;
		ns += (ull) ans[i] * w;
		if(!(i & 16)) ns %= mod;
		s = (ll) s * pw % (mod - 1);
	}
	ns %= mod;
	cout << ns << '\n';
	return 0;
}

详细

Subtask #1:

score: 10
Accepted

Test #1:

score: 10
Accepted
time: 3ms
memory: 5784kb

input:

1 2 540053233

output:

9

result:

ok 1 number(s): "9"

Test #2:

score: 0
Accepted
time: 3ms
memory: 5504kb

input:

2 2 156542707

output:

43046970

result:

ok 1 number(s): "43046970"

Test #3:

score: 0
Accepted
time: 2ms
memory: 3652kb

input:

1 2 186225229

output:

9

result:

ok 1 number(s): "9"

Test #4:

score: 0
Accepted
time: 1ms
memory: 3480kb

input:

3 3 109884329

output:

100602209

result:

ok 1 number(s): "100602209"

Test #5:

score: 0
Accepted
time: 2ms
memory: 3548kb

input:

1 2 144802297

output:

9

result:

ok 1 number(s): "9"

Subtask #2:

score: 20
Accepted

Dependency #1:

100%
Accepted

Test #6:

score: 20
Accepted
time: 2ms
memory: 3524kb

input:

20 21992843 328859143

output:

110137213

result:

ok 1 number(s): "110137213"

Test #7:

score: 0
Accepted
time: 0ms
memory: 3744kb

input:

22 332524739 654888401

output:

410922781

result:

ok 1 number(s): "410922781"

Test #8:

score: 0
Accepted
time: 0ms
memory: 3580kb

input:

26 302215049 566649113

output:

221720840

result:

ok 1 number(s): "221720840"

Test #9:

score: 0
Accepted
time: 1ms
memory: 3656kb

input:

15 111009527 722130737

output:

648834664

result:

ok 1 number(s): "648834664"

Test #10:

score: 0
Accepted
time: 3ms
memory: 3608kb

input:

82 110032063 394529383

output:

111730592

result:

ok 1 number(s): "111730592"

Test #11:

score: 0
Accepted
time: 2ms
memory: 3564kb

input:

9 11172911 259650437

output:

68381774

result:

ok 1 number(s): "68381774"

Test #12:

score: 0
Accepted
time: 3ms
memory: 3656kb

input:

86 12016027 354886243

output:

263687778

result:

ok 1 number(s): "263687778"

Test #13:

score: 0
Accepted
time: 3ms
memory: 3728kb

input:

91 273689959 454097881

output:

114436127

result:

ok 1 number(s): "114436127"

Test #14:

score: 0
Accepted
time: 0ms
memory: 3588kb

input:

73 148878967 694206977

output:

176215101

result:

ok 1 number(s): "176215101"

Test #15:

score: 0
Accepted
time: 2ms
memory: 3504kb

input:

45 205982233 227598247

output:

156769598

result:

ok 1 number(s): "156769598"

Subtask #3:

score: 10
Accepted

Dependency #2:

100%
Accepted

Test #16:

score: 10
Accepted
time: 3ms
memory: 3676kb

input:

2778 122825869 147297463

output:

43419574

result:

ok 1 number(s): "43419574"

Test #17:

score: 0
Accepted
time: 1ms
memory: 3704kb

input:

289 7729669 589652893

output:

552952137

result:

ok 1 number(s): "552952137"

Test #18:

score: 0
Accepted
time: 3ms
memory: 3524kb

input:

2281 35651417 203950963

output:

21659018

result:

ok 1 number(s): "21659018"

Test #19:

score: 0
Accepted
time: 3ms
memory: 3660kb

input:

1684 258745639 373223677

output:

355596229

result:

ok 1 number(s): "355596229"

Test #20:

score: 0
Accepted
time: 1ms
memory: 3736kb

input:

2107 86850989 455823859

output:

245960059

result:

ok 1 number(s): "245960059"

Test #21:

score: 0
Accepted
time: 4ms
memory: 3564kb

input:

1323 43290799 791120419

output:

509649562

result:

ok 1 number(s): "509649562"

Test #22:

score: 0
Accepted
time: 0ms
memory: 3536kb

input:

2401 34064903 185314627

output:

70571452

result:

ok 1 number(s): "70571452"

Test #23:

score: 0
Accepted
time: 3ms
memory: 3616kb

input:

1073 82288187 564447959

output:

168200843

result:

ok 1 number(s): "168200843"

Test #24:

score: 0
Accepted
time: 3ms
memory: 3540kb

input:

1926 29995039 129122281

output:

60921463

result:

ok 1 number(s): "60921463"

Test #25:

score: 0
Accepted
time: 1ms
memory: 3800kb

input:

3000 66915659 765705179

output:

222619979

result:

ok 1 number(s): "222619979"

Subtask #4:

score: 20
Accepted

Test #26:

score: 20
Accepted
time: 261ms
memory: 27120kb

input:

998818 198334853 998244353

output:

153251445

result:

ok 1 number(s): "153251445"

Test #27:

score: 0
Accepted
time: 246ms
memory: 25192kb

input:

914379 128814383 998244353

output:

477606145

result:

ok 1 number(s): "477606145"

Test #28:

score: 0
Accepted
time: 248ms
memory: 25832kb

input:

944474 478445339 998244353

output:

174204073

result:

ok 1 number(s): "174204073"

Test #29:

score: 0
Accepted
time: 256ms
memory: 28428kb

input:

948637 711592127 998244353

output:

178256114

result:

ok 1 number(s): "178256114"

Test #30:

score: 0
Accepted
time: 239ms
memory: 26100kb

input:

927564 14465663 998244353

output:

315244613

result:

ok 1 number(s): "315244613"

Test #31:

score: 0
Accepted
time: 243ms
memory: 26324kb

input:

934615 392799073 998244353

output:

892700270

result:

ok 1 number(s): "892700270"

Test #32:

score: 0
Accepted
time: 233ms
memory: 27868kb

input:

917196 124972031 998244353

output:

782017412

result:

ok 1 number(s): "782017412"

Test #33:

score: 0
Accepted
time: 249ms
memory: 26956kb

input:

957149 392606173 998244353

output:

159348443

result:

ok 1 number(s): "159348443"

Test #34:

score: 0
Accepted
time: 261ms
memory: 27688kb

input:

997042 184649453 998244353

output:

464643024

result:

ok 1 number(s): "464643024"

Test #35:

score: 0
Accepted
time: 250ms
memory: 28404kb

input:

953353 14071961 998244353

output:

391688875

result:

ok 1 number(s): "391688875"

Subtask #5:

score: 0
Time Limit Exceeded

Test #36:

score: 0
Time Limit Exceeded

input:

9909956 720431399 720431401

output:


result:


Subtask #6:

score: 0
Skipped

Dependency #1:

100%
Accepted

Dependency #2:

100%
Accepted

Dependency #3:

100%
Accepted

Dependency #4:

100%
Accepted

Dependency #5:

0%