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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
#94642#6190. Graph ProblemNarratorAC ✓1549ms15640kbC++143.7kb2023-04-07 11:29:572023-04-07 11:30:00

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.
  • [2023-04-07 11:30:00]
  • 评测
  • 测评结果:AC
  • 用时:1549ms
  • 内存:15640kb
  • [2023-04-07 11:29:57]
  • 提交

answer

#include <algorithm>
#include <iostream>
#include <cstring>
#include <random>
#include <chrono>
constexpr int N(510), p(1e9 + 9);
int fp(int a, int b)
{
	int ans(1), off(a);
	while (b)
	{
		if (b & 1)
			ans = 1ll * ans * off % p;
		off = 1ll * off * off % p;
		b >>= 1;
	}
	return ans;
}
void inv(int dat[N][N], int n, int ans[N][N])
{
	for (int i(1); i <= n; ++i)
	{
		std::memset(ans[i] + 1, 0, sizeof(int) * n);
		ans[i][i] = 1;
	}
	for (int i(1); i <= n; ++i)
	{
		int pos(i);
		for (int j(i); j <= n; ++j)
			if (dat[j][i])
			{
				pos = j;
				break;
			}
		if (pos != i)
		{
			for (int t(i); t <= n; ++t)
				std::swap(dat[i][t], dat[pos][t]);
			for (int t(1); t <= n; ++t)
				std::swap(ans[i][t], ans[pos][t]);
		}
		int num(fp(dat[i][i], p - 2));
		for (int t(i); t <= n; ++t)
			dat[i][t] = 1ll * dat[i][t] * num % p;
		for (int t(1); t <= n; ++t)
			ans[i][t] = 1ll * ans[i][t] * num % p;
		for (int j(1); j <= n; ++j)
			if (j != i)
			{
				int v(p - dat[j][i]);
				for (int t(i); t <= n; ++t)
					dat[j][t] = (dat[j][t] + 1ll * dat[i][t] * v) % p;
				for (int t(1); t <= n; ++t)
					ans[j][t] = (ans[j][t] + 1ll * ans[i][t] * v) % p;
			}
	}
}
namespace fr
{
#include <ctype.h>
	char buf[1 << 23], *p1 = buf, *p2 = buf, obuf[1 << 23], *O = obuf;
#define getchar() (p1 == p2 && (p2 = (p1 = buf) + fread(buf, 1, 1 << 21, stdin), p1 == p2) ? EOF : *p1++)
#define putchar(c) (((O == obuf + (1 << 23)) ? (fwrite(obuf, 1, O - obuf, stdout), O = obuf) : O), *O++ = (c))
	void rd(char *x)
	{
		char c = getchar();
		while (isspace(c))
			c = getchar();
		while (!isspace(c) && c != EOF)
			*(x++) = c, c = getchar();
		*(x++) = '\0';
	}
	template <class T>
	void rd(T &x)
	{
		T ret = 0;
		bool flg = false;
		char c = getchar();
		while (!isdigit(c) && c != '-')
			c = getchar();
		if (c == '-')
			c = getchar(), flg = true;
		while (isdigit(c))
			ret = (ret << 1) + (ret << 3) + (c - '0'), c = getchar();
		if (flg)
			x = -ret;
		else
			x = ret;
	}
	void pc(char c) { putchar(c); }
	void flush() { fwrite(obuf, 1, O - obuf, stdout), O = obuf; }
	template <class T>
	void wr(T x)
	{
		if (x < 0)
			putchar('-'), x = -x;
		if (x == 0)
			putchar('0');
		static int cnt, stk[110];
		cnt = 0;
		while (x)
			stk[++cnt] = x % 10, x /= 10;
		for (int i = cnt; i; --i)
			putchar(stk[i] + '0');
	}
}
using fr::flush;
using fr::pc;
using fr::rd;
using fr::wr;
int main()
{
	static int tmp[N][N], trans[N][N], M[N][N], rev[N][N];
	std::mt19937 rnd(std::chrono::high_resolution_clock::now().time_since_epoch().count());
	std::uniform_int_distribution<int> uid{2, p - 2};
	int n, m;
	rd(n);
	rd(m);
	for (int i(1); i <= m; ++i)
	{
		int u, v;
		rd(u);
		rd(v);
		trans[u][v] = uid(rnd);
		tmp[u][v] = p - trans[u][v];
	}
	for (int i(1); i <= n; ++i)
		trans[i][i] = uid(rnd), tmp[i][i] = p + 1 - trans[i][i];
	inv(tmp, n, M);
	int q;
	rd(q);
	int cnt(0);
	while (q--)
	{
		int k;
		rd(k);
		static int ps[10];
		for (int i(1); i <= k; ++i)
		{
			int t;
			rd(t);
			ps[i] = (t + cnt - 1) % n + 1;
		}
		for (int i(1); i <= k; ++i)
		{
			for (int j(1); j <= k; ++j)
			{
				tmp[i][j] = M[ps[i]][ps[j]];
			}
		}
		inv(tmp, k, rev);
		int qq;
		rd(qq);
		while (qq--)
		{
			int s, t;
			rd(s);
			rd(t);
			s = (s + cnt - 1) % n + 1, t = (t + cnt - 1) % n + 1;
			int ans(0);
			for (int i(1); i <= k; ++i)
			{
				for (int j(1); j <= k; ++j)
				{
					ans = (ans + 1ll * M[s][ps[i]] * rev[i][j] % p * M[ps[j]][t]) % p;
				}
			}
			if (ans == M[s][t])
			{
				pc('0');
			}
			else
			{
				pc('1');
				++cnt;
			}
		}
		pc('\n');
	}
	flush();
	return 0;
}

详细

Test #1:

score: 100
Accepted
time: 2ms
memory: 7596kb

input:

5 4
1 2
2 3
3 4
4 5
2
1 4
2 1 5 1 3
3 5 3 4
1 1 2

output:

01
1

result:

ok 2 lines

Test #2:

score: 0
Accepted
time: 2ms
memory: 7732kb

input:

100 4870
1 4
1 9
2 1
2 6
2 8
4 5
4 10
5 2
5 3
5 7
6 2
6 4
6 8
7 1
7 2
7 8
7 10
8 1
8 2
8 3
8 4
8 5
8 6
8 7
8 9
8 13
8 16
8 17
9 1
9 2
9 3
9 4
9 5
9 6
9 7
9 8
9 18
10 1
10 2
10 3
10 4
10 5
10 6
10 7
10 11
10 15
11 1
11 2
11 3
11 4
11 5
11 6
11 7
11 8
11 9
11 10
11 12
11 18
11 20
12 1
12 2
12 3
12 4
1...

output:

1011000010
1010110101
0001010000
0000101001
1000010000
0111001101
0011001101
1100010010
0001100010
0010110101
0011001111
0001000101
1101010010
0100001100
1000100001
0100000000
1110100000
0101111010
0111001001
1110000000
1011000011
0110000000
0000000100
0001011000
1000111000
1111000010
1000110000
011...

result:

ok 100 lines

Test #3:

score: 0
Accepted
time: 6ms
memory: 7696kb

input:

100 4839
1 2
1 7
1 12
1 13
1 15
1 17
1 21
1 22
1 24
2 1
2 4
2 5
2 7
2 12
2 16
2 19
2 22
2 24
3 7
3 8
3 13
3 20
3 22
4 8
4 12
4 14
4 19
5 2
5 3
5 4
5 6
5 7
5 10
5 13
5 14
5 19
5 24
6 3
6 7
6 8
6 10
6 12
6 13
6 15
6 17
6 19
6 21
6 23
6 24
7 2
7 6
7 8
7 9
7 10
7 12
7 13
7 16
7 23
8 1
8 9
8 11
8 12
8 13...

output:

1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111100111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
111...

result:

ok 100 lines

Test #4:

score: 0
Accepted
time: 2ms
memory: 7792kb

input:

100 4650
1 7
1 12
1 20
1 22
2 7
2 9
2 10
2 11
2 14
2 18
2 20
3 1
3 4
3 8
3 12
3 14
3 16
3 17
3 20
3 21
3 22
4 1
4 6
4 8
4 11
4 12
4 13
4 16
4 21
5 2
5 4
5 9
5 16
5 19
5 21
6 7
6 9
6 10
6 21
7 2
7 8
7 9
7 19
7 20
7 22
8 5
8 7
8 11
8 12
8 14
8 21
9 1
9 5
9 6
9 7
9 8
9 12
9 17
9 21
9 22
10 4
10 9
10 12...

output:

1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
111...

result:

ok 100 lines

Test #5:

score: 0
Accepted
time: 5ms
memory: 7744kb

input:

100 4945
1 2
1 3
1 5
1 7
1 8
1 9
1 10
1 13
1 15
2 1
2 3
2 4
2 9
2 11
2 12
2 15
3 1
3 10
3 12
3 16
4 1
4 5
4 10
4 12
4 13
4 15
4 16
5 6
5 11
5 16
5 17
6 2
6 10
6 11
6 14
7 1
7 2
7 3
7 4
7 5
7 6
7 8
7 9
7 10
7 11
7 16
7 21
7 22
7 23
7 24
7 25
7 27
7 28
7 30
7 31
7 32
7 35
7 38
7 39
8 1
8 2
8 3
8 4
8 5...

output:

1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1110101101
1111111111
1111111111
1111111111
1111111111
1100011011
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
111...

result:

ok 100 lines

Test #6:

score: 0
Accepted
time: 410ms
memory: 11416kb

input:

500 124582
1 12
1 14
2 4
2 7
2 9
2 13
2 14
2 18
3 1
3 4
3 7
3 14
3 17
4 1
4 3
4 6
4 12
4 15
4 18
5 3
6 1
6 3
6 8
6 10
6 11
6 13
6 15
6 17
6 18
7 3
7 4
7 5
7 8
7 9
7 17
8 2
8 6
9 10
9 13
9 17
10 2
10 5
10 17
11 1
11 2
11 3
11 4
11 5
11 6
11 7
11 8
11 9
11 10
11 17
11 18
11 19
11 26
12 1
12 2
12 3
12 ...

output:

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
...

result:

ok 100000 lines

Test #7:

score: 0
Accepted
time: 410ms
memory: 11440kb

input:

500 125402
1 3
1 7
1 10
1 13
1 16
1 21
1 23
1 25
1 28
1 36
1 37
2 3
2 4
2 6
2 7
2 9
2 11
2 16
2 17
2 19
2 20
2 24
2 26
2 28
2 30
2 37
3 2
3 18
3 19
3 21
3 25
3 26
3 32
4 7
4 9
4 10
4 11
4 12
4 14
4 15
4 18
4 19
4 24
4 33
4 35
4 36
5 1
5 4
5 10
5 11
5 17
5 19
5 20
5 21
5 23
5 24
5 31
5 32
5 36
5 38
5...

output:

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
0
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
...

result:

ok 100000 lines

Test #8:

score: 0
Accepted
time: 407ms
memory: 10216kb

input:

500 123930
1 6
1 11
1 13
1 16
1 22
1 25
1 26
1 34
1 38
1 41
1 42
1 43
1 44
1 46
1 48
1 49
1 51
1 53
1 56
2 6
2 9
2 13
2 15
2 24
2 31
2 33
2 36
2 37
2 43
2 44
2 50
2 53
2 56
3 2
3 4
3 5
3 16
3 18
3 19
3 25
3 31
3 32
3 40
3 43
3 44
3 47
3 48
3 50
3 51
3 53
4 1
4 2
4 3
4 5
4 6
4 8
4 14
4 18
4 20
4 26
4...

output:

0
1
1
0
1
1
1
1
1
1
1
1
0
1
1
0
1
1
0
1
1
0
0
1
0
1
0
1
0
1
1
1
0
1
0
0
1
0
0
1
1
1
0
1
1
0
0
1
0
0
0
0
1
0
1
0
0
1
0
0
1
0
1
0
0
0
0
0
1
0
0
1
0
0
0
1
0
0
1
0
0
1
1
0
1
1
0
0
1
0
1
0
1
1
0
1
0
0
0
1
0
1
1
1
1
0
0
0
1
0
1
1
0
0
1
1
0
1
1
0
1
1
0
0
0
1
1
0
0
1
1
0
0
0
0
1
1
1
1
1
1
0
0
0
0
1
0
1
1
1
...

result:

ok 100000 lines

Test #9:

score: 0
Accepted
time: 408ms
memory: 11128kb

input:

500 123484
1 5
1 8
1 10
1 11
1 12
1 20
1 23
1 26
1 27
1 28
1 29
1 31
1 33
1 41
2 4
2 7
2 10
2 18
2 20
2 34
2 35
2 39
2 41
2 42
2 44
2 46
2 52
3 4
3 5
3 6
3 7
3 9
3 14
3 17
3 19
3 23
3 25
3 26
3 32
3 36
3 38
3 39
3 40
3 44
3 46
3 48
3 51
4 1
4 7
4 11
4 12
4 14
4 16
4 17
4 19
4 21
4 23
4 24
4 25
4 29
...

output:

0
0
1
1
1
0
1
1
1
1
0
0
0
1
0
1
1
1
1
0
0
1
1
0
0
0
1
1
1
0
0
1
1
0
0
0
1
1
0
1
0
0
0
1
1
1
1
1
0
0
0
0
0
1
1
0
0
1
0
0
1
1
1
0
1
0
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
1
1
0
1
1
1
0
1
1
1
0
1
1
1
0
0
0
0
0
1
0
0
0
1
1
0
0
1
1
0
0
1
1
1
0
1
1
1
1
1
0
1
0
1
0
1
0
1
1
1
1
1
0
1
1
1
1
1
0
0
1
0
0
0
1
0
1
0
...

result:

ok 100000 lines

Test #10:

score: 0
Accepted
time: 1544ms
memory: 15440kb

input:

500 3278
2 5
2 7
3 5
4 6
4 9
5 6
5 7
5 8
6 8
6 9
6 10
7 8
7 9
8 9
9 13
9 20
9 22
9 23
9 24
9 27
9 29
9 31
10 12
10 14
10 17
10 21
10 23
10 24
10 25
10 26
10 27
11 15
11 17
11 20
11 21
11 25
12 16
12 20
12 21
12 22
12 24
12 28
12 32
12 33
12 39
12 42
12 45
12 46
12 47
12 48
13 14
13 20
13 21
13 23
13...

output:

1011111110
1010010110
0011111011
0101110101
0101011111
1111100001
1111111101
1110000110
1111111011
1111101011
1100101011
1110110111
1100111011
1110100100
1010011111
1111110111
0110111111
1111011100
1110011111
1001101000
1110100111
0111110111
1110111110
1101110001
1111010111
0100100011
1111010011
111...

result:

ok 400000 lines

Test #11:

score: 0
Accepted
time: 1511ms
memory: 14292kb

input:

500 3720
1 3
1 8
1 9
1 11
1 12
1 13
1 18
1 24
1 25
2 4
2 6
2 9
2 10
2 12
2 13
2 18
2 23
2 24
3 8
3 15
3 18
3 19
3 22
3 25
3 26
4 10
4 15
4 17
4 19
5 7
5 9
5 10
5 12
5 13
5 14
5 21
6 8
6 9
6 13
6 16
6 24
7 9
7 11
7 13
7 14
7 15
7 16
7 18
7 26
8 10
8 15
8 18
8 19
8 21
8 22
9 14
9 15
9 16
9 20
9 21
9 2...

output:

1111111101
1111111100
1110111110
1111111110
1111111111
1111111110
1101111011
1111111111
1111110111
1111111101
1111111111
0001010100
1111111111
1111111111
0011110111
1111111101
1111111111
1111111111
1110111111
1111111111
1011110011
1011111111
1111101101
1111111110
1111111111
1111111110
1111001111
110...

result:

ok 400000 lines

Test #12:

score: 0
Accepted
time: 1517ms
memory: 15640kb

input:

500 4232
1 2
1 6
1 14
1 16
2 4
2 6
2 10
2 16
2 17
2 18
2 25
2 26
2 28
3 4
3 6
3 12
3 13
3 17
3 18
3 25
4 8
4 12
4 18
4 23
4 28
5 8
5 9
5 10
5 12
5 13
5 17
5 18
5 21
5 26
5 28
6 8
6 9
6 12
6 23
6 24
6 25
6 26
6 27
6 29
7 15
7 23
7 24
7 25
7 28
8 12
8 14
8 16
8 19
8 29
9 12
9 13
9 15
9 16
9 17
9 20
9 ...

output:

1111011011
1111111111
1111111111
0111111011
1111111011
1110111111
0111111110
1110110111
1110001110
1011111111
0111111111
1111111111
1011111110
1111111111
1011111111
1111111111
1111011111
1111111011
1110111111
0111111111
0111110111
1111101111
0111110111
0111111111
1111111111
1111110011
1111111111
111...

result:

ok 400000 lines

Test #13:

score: 0
Accepted
time: 1531ms
memory: 14372kb

input:

500 6443
1 5
1 9
1 12
1 15
1 18
1 20
1 21
1 22
1 24
1 26
1 27
1 30
1 34
1 35
1 37
1 40
1 42
1 45
1 47
1 48
1 49
1 55
1 58
1 64
1 67
1 68
1 71
1 72
2 3
2 6
2 8
2 9
2 16
2 17
2 19
2 23
2 26
2 29
2 31
2 35
2 36
2 37
2 38
2 41
2 45
2 47
2 52
2 53
2 57
2 69
2 70
2 73
2 76
2 77
3 6
3 12
3 14
3 15
3 20
3 2...

output:

1001111111
0101111010
1111011111
1111111010
1111101111
0111111111
0110111111
1110111111
1111101101
1011111111
1111111111
1111111101
1110111110
1101111111
1011111111
1011111111
1111111111
1111110110
1111110101
1011111011
1111101110
1111111010
0011101101
1011111101
1111101111
1111100110
1101101000
111...

result:

ok 400000 lines

Test #14:

score: 0
Accepted
time: 1549ms
memory: 14608kb

input:

500 123824
2 4
2 6
3 1
3 10
4 2
4 6
4 7
4 8
5 2
5 3
5 4
5 7
5 8
5 11
6 7
7 3
7 5
7 6
7 8
7 11
8 2
8 4
9 1
9 2
9 3
9 4
9 5
9 6
9 7
9 8
9 12
9 14
9 17
9 21
9 23
9 24
9 25
9 26
9 27
10 1
10 2
10 3
10 4
10 5
10 6
10 7
10 8
10 13
10 15
10 18
10 19
10 23
11 1
11 2
11 3
11 4
11 5
11 6
11 7
11 8
11 10
11 15...

output:

0111110011
0110111111
1011001110
0101001011
0111110111
0011011000
1011110010
1000001101
1111000111
0101101111
1000001010
1010101010
0100000100
1011101110
1100011000
0000111110
0010100011
0110010101
1000111111
1101000001
0111110010
0011110100
0011101010
1001001111
0001010011
1010110110
0110111110
000...

result:

ok 400000 lines

Test #15:

score: 0
Accepted
time: 1495ms
memory: 15264kb

input:

500 124816
1 3
1 8
1 9
1 11
1 12
1 13
1 18
1 24
1 25
2 3
2 5
2 8
2 9
2 11
2 12
2 17
2 22
2 23
3 5
3 12
3 15
3 16
3 19
3 22
3 23
4 3
4 9
4 11
4 13
4 22
4 24
4 25
5 1
5 2
5 3
5 11
5 18
5 19
5 23
5 26
6 9
6 13
6 15
6 17
6 18
6 19
6 20
6 22
7 4
7 6
7 12
7 15
7 16
7 18
7 19
8 2
8 3
8 4
8 9
8 10
8 11
8 16...

output:

1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
111...

result:

ok 400000 lines

Test #16:

score: 0
Accepted
time: 1532ms
memory: 15480kb

input:

500 124872
1 2
1 6
1 14
1 16
2 1
2 4
2 6
2 10
2 16
2 17
2 18
2 25
2 26
2 28
3 1
3 2
3 5
3 11
3 12
3 16
3 17
3 24
4 1
4 5
4 9
4 15
4 20
4 25
4 30
5 1
5 2
5 3
5 6
5 7
5 11
5 12
5 15
5 20
5 22
5 26
5 27
5 30
6 1
6 13
6 14
6 15
6 16
6 17
6 19
6 28
7 1
7 8
7 9
7 10
7 13
7 19
7 21
7 23
7 26
8 1
8 7
8 12
8...

output:

0001111111
1101111010
1110011011
1011001101
0110111111
0000111000
1101010111
0101001111
1001101011
1111111101
1111110011
0010011010
0001000001
0101101111
1111000101
1100100001
0011010101
1010010110
0011111011
0000011011
1100010000
1011011011
1111010001
0110111011
0111000111
0111111000
1111000111
011...

result:

ok 400000 lines

Test #17:

score: 0
Accepted
time: 1509ms
memory: 15616kb

input:

500 124293
1 5
1 9
1 12
1 15
1 18
1 20
1 21
1 22
1 24
1 26
1 27
1 30
1 34
1 35
1 37
1 40
1 42
1 45
1 47
1 48
1 49
1 55
1 58
1 64
1 67
1 68
1 71
1 72
2 1
2 5
2 7
2 8
2 15
2 16
2 18
2 22
2 25
2 28
2 30
2 34
2 35
2 36
2 37
2 40
2 44
2 46
2 51
2 52
2 56
2 68
2 69
2 72
2 75
2 76
3 2
3 9
3 11
3 12
3 17
3 ...

output:

1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111101
1111111111
1111111111
1111111111
1111111111
1100100100
1111111111
1111111111
1111111111
111...

result:

ok 400000 lines