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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
#18722#992. Number of Colorful MatchingslinmuhanAC ✓219ms10084kbC++114.2kb2022-01-25 17:11:412022-05-06 02:18:17

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.
  • [2022-05-06 02:18:17]
  • 评测
  • 测评结果:AC
  • 用时:219ms
  • 内存:10084kb
  • [2022-01-25 17:11:41]
  • 提交

answer

#include <iostream>
#define ll long long
using namespace std;
const ll N = 530;
const ll mod = 2;
ll n; ll Ans = 1;
struct elem {
	ll a, b;
}t[N][N];
ll I[N][N];
bool ZERO = 0; ll Z = 0;
namespace CHARA {
	ll p[N][N], a[N][N];
	ll qpow (ll a, ll b) {
		ll ans = 1ll;
		while (b) {
			if (b & 1) ans = ans * a % mod;
			a = a * a % mod;
			b >>= 1;
		}
		return ans;
	}
	ll inv (ll x) {return qpow (x, mod - 2);}
	void Hesb (ll n) {
		for (register ll i=1;i<n;i++) {
			ll p = -1;
			for (register ll j=i+1;j<=n;j++) {
				if (a[j][i]) {
					p = j;
					break ;
				}
			}
			if (p == -1) continue ;
			else {
				swap (a[p], a[i + 1]);
				for (register ll j=1;j<=n;j++) swap (a[j][p], a[j][i + 1]);
			}
			for (register ll j=i+2;j<=n;j++) {
				ll tmp = a[j][i] * inv (a[i + 1][i]) % mod;
				for (register ll k=1;k<=n;k++) a[j][k] = (a[j][k] + mod - tmp * a[i + 1][k] % mod) % mod;
				for (register ll k=1;k<=n;k++) a[k][i + 1] = (a[k][i + 1] + tmp * a[k][j] % mod) % mod;
			}
		}
	}
	ll neg (ll x) {
		x = mod - x;
		return x % mod;
	}
	void solu () {
		p[0][0] = 1;
		for (register ll i=1;i<=n;i++) {
			for (register ll m=1;m<i;m++) {
				ll tmp = a[m][i];
				for (register ll j=m;j<i;j++) tmp = tmp * a[j + 1][j] % mod;
				for (register ll j=0;j<=n;j++) p[i][j] = (p[i][j] + neg (tmp * p[m - 1][j] % mod)) % mod;
			}
			for (register ll j=1;j<=n;j++) p[i][j] = (p[i][j] + p[i - 1][j - 1]) % mod;
			for (register ll j=0;j<=n;j++) p[i][j] = (p[i][j] + neg (a[i][i] * p[i - 1][j] % mod)) % mod;
		}
	}
}
using namespace CHARA;
void solve (elem t[N][N]) {
	for (ll i=1;i<=n;i++) {
		ll ps = -1;
		if (t[i][i].b) ps = i;
		while (ps == -1) {
			for (ll j=i;j<=n;j++) if (t[i][j].b) {
				ps = j; break ;
			}
			if (ps != -1) break ;
			Z ++;
			if (Z >= n + 1) {
				ZERO = 1;
				return ;
			}
			for (ll j=1;j<=n;j++) t[i][j].b = t[i][j].a, t[i][j].a = 0;
			for (ll j=1;j<i;j++) {
				ll tmp = t[i][j].b * inv (t[j][j].b) % mod;
				for (ll k=1;k<=n;k++) {
					t[i][k].a = (t[i][k].a - t[j][k].a * tmp % mod + mod) % mod;
					t[i][k].b = (t[i][k].b - t[j][k].b * tmp % mod + mod) % mod;
					I[i][k] = (I[i][k] - I[j][k] * tmp % mod + mod) % mod;
				}
			}
		}
		for (ll j=1;j<=n;j++) swap (t[j][i], t[j][ps]);
		for (ll j=1;j<=n;j++) swap (I[j][i], I[j][ps]);
		ll invv = inv (t[i][i].b);
		for (ll k=1;k<=n;k++) {
			t[i][k].a = t[i][k].a * invv % mod;
			t[i][k].b = t[i][k].b * invv % mod;
			I[i][k] = I[i][k] * invv % mod;
		}
		for (ll j=1;j<=n;j++) {
			if (j == i) continue ;
			ll tmp = t[j][i].b * inv (t[i][i].b) % mod;
			for (ll k=1;k<=n;k++) {
				t[j][k].a = (t[j][k].a - t[i][k].a * tmp % mod + mod) % mod;
				t[j][k].b = (t[j][k].b - t[i][k].b * tmp % mod + mod) % mod;
				I[j][k] = (I[j][k] - I[i][k] * tmp % mod + mod) % mod;
			}
		}
	}
}
void Dswap (ll n, ll p, ll q) {
	for (ll i=1;i<=n;i++) swap (I[p][i], I[q][i]);
}
void deter (ll n) {
	bool fu = 0;
	for (ll i=1;i<=n;i++) {
		ll wei = i; bool flag = 0;
		for (ll j=i;j<=n;j++) {
			if (I[j][i] && ! flag) flag = 1;
			if (I[j][i] && I[j][i] < I[wei][i]) wei = j;
		}
		if (! flag) {Ans = 0; return ;}
		if (i != wei) Dswap (n, i, wei), fu = 1 - fu;
		for (ll j=i+1;j<=n;j++) {
			if (I[j][i] > I[i][i]) {Dswap (n, i, j); fu = 1 - fu;}
			while (I[j][i]) {
				long long tmp = I[i][i] * inv (I[j][i]) % mod;
				for (ll k=i;k<=n;k++) I[i][k] = (I[i][k] + (mod - tmp) * I[j][k] % mod) % mod;				
				Dswap (n, i, j);
				fu = 1 - fu;
			}
		}
		Ans = Ans * I[i][i] % mod;
	}
	if (fu) Ans = (- Ans + mod) % mod;
}
int main () {
	cin >> n;
	for (ll i=1;i<=n;i++) I[i][i] = 1;
	for (ll i=1;i<=n;i++) 
		for (ll j=1;j<=n;j++) 
			scanf ("%1lld", &t[i][j].b);
	for (ll i=1;i<=n;i++) 
		for (ll j=1;j<=n;j++) 
			scanf ("%1lld", &t[i][j].a);
	solve (t);
	if (ZERO) {
		for (ll i=0;i<=n;i++) putchar ('0'), putchar (' ');
		return 0;
	}
	for (ll i=1;i<=n;i++) 
		for (ll j=1;j<=n;j++) 
			a[i][j] = mod - t[i][j].a, a[i][j] %= mod;
	Hesb (n);
	solu ();
	deter (n);
	ll Inv = qpow (Ans, mod - 2);
	for (ll i=0;i<=n-Z;i++) printf ("%lld\n", p[n][i + Z] * Inv % mod);
	for (ll i=0;i<Z;i++) putchar ('0'), putchar ('\n');
	return 0;
}

詳細信息

Test #1:

score: 100
Accepted
time: 1ms
memory: 3816kb

input:

2
11
10
00
11

output:

0
0
1

result:

ok 3 tokens

Test #2:

score: 0
Accepted
time: 3ms
memory: 3960kb

input:

10
0100110000
0000010111
0111000111
1000101100
1101000001
1111110000
1001001110
0000000011
0001000010
0100100110
1100010101
0001000001
0001001010
0011100111
0010101111
1001011011
1001100111
0111101001
0010100010
0001111011

output:

0
0
0
1
1
1
1
1
0
0
1

result:

ok 11 tokens

Test #3:

score: 0
Accepted
time: 3ms
memory: 4084kb

input:

18
001100000000010111
011100011110001011
001101000001111111
000010010011100000
000011000100001001
001001101100010101
000100000100010010
100011100111001010
111110010110111001
100111011110100100
101000100001111011
110000100101011111
101011001000000111
110001011110010101
110010011111001110
001001011100...

output:

0
0
0
1
0
0
0
1
1
1
1
1
1
1
0
0
0
0
0

result:

ok 19 tokens

Test #4:

score: 0
Accepted
time: 3ms
memory: 3968kb

input:

18
110000000001011101
110001111000101100
110100000111111100
001001001110000000
001100010000100100
100110110001010100
010000010001001010
001110011100101011
111001011011100110
011101111010010010
100010000111101111
000010010101111110
101100100000011111
000101111001010111
001001111100111000
100101110010...

output:

0
0
0
0
1
0
1
1
1
0
1
1
0
0
1
0
1
1
0

result:

ok 19 tokens

Test #5:

score: 0
Accepted
time: 218ms
memory: 10084kb

input:

300
00000000010111011100011110001011001101000001111111000010010011100000000011000100001001001001101100010101000100000100010010100011100111001010111110010110111001100111011110100100101000100001111011110000100101011111101011001000000111110001011110010101110010011111001110001001011100100010010000000000...

output:

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

result:

ok 301 tokens

Test #6:

score: 0
Accepted
time: 215ms
memory: 10084kb

input:

300
00000001011101110001111000101100110100000111111100001001001110000000001100010000100100100110110001010100010000010001001010001110011100101011111001011011100110011101111010010010100010000111101111000010010101111110101100100000011111000101111001010111001001111100111000100101110010001001000000000001...

output:

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

result:

ok 301 tokens

Test #7:

score: 0
Accepted
time: 208ms
memory: 9880kb

input:

300
00000101110111000111100010110011010000011111110000100100111000000000110001000010010010011011000101010001000001000100101000111001110010101111100101101110011001110111101001001010001000011110111100001001010111111010110010000001111100010111100101011100100111110011100010010111001000100100000000000111...

output:

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

result:

ok 301 tokens

Test #8:

score: 0
Accepted
time: 65ms
memory: 7708kb

input:

200
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

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

result:

ok 201 tokens

Test #9:

score: 0
Accepted
time: 101ms
memory: 8436kb

input:

230
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000...

output:

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

result:

ok 231 tokens

Test #10:

score: 0
Accepted
time: 201ms
memory: 9316kb

input:

270
000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
0000000000000000000000000...

output:

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

result:

ok 271 tokens

Test #11:

score: 0
Accepted
time: 219ms
memory: 10000kb

input:

300
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

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

result:

ok 301 tokens

Test #12:

score: 0
Accepted
time: 1ms
memory: 4688kb

input:

50
11000111100010110011010000011111110000100100111000
00000011000100001001001001101100010101000100000100
01001010001110011100101011111001011011100110011101
11101001001010001000011110111100001001010111111010
11001000000111110001011110010101110010011111001110
001001011100100010010000000000011101110101...

output:

0
1
1
1
0
0
0
0
0
0
1
0
0
1
1
1
0
1
0
0
0
1
0
0
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1
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1
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1
1
0
0
1
0
1
0
0
1
0
1
0
1
1
1
1
0
0
1
1

result:

ok 51 tokens

Test #13:

score: 0
Accepted
time: 8ms
memory: 5236kb

input:

80
00011110001011001101000001111111000010010011100000000011000100001001001001101100
01010100010000010001001010001110011100101011111001011011100110011101111010010010
10001000011110111100001001010111111010110010000001111100010111100101011100100111
110011100010010111001000100100000000000111011101011011...

output:

0
1
0
0
1
0
1
0
1
0
0
1
1
0
0
0
0
1
1
0
0
0
1
1
1
0
1
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1
0
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1
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1
0
0
0
0
1
1
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1
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1
1
1
1
1
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1
0
1
1
1
1
1
0
0
0
0
0
1
0
0
1
0
1
1
0
0

result:

ok 81 tokens

Test #14:

score: 0
Accepted
time: 19ms
memory: 5992kb

input:

120
011110001011001101000001111111000010010011100000000011000100001001001001101100010101000100000100010010100011100111001010
111110010110111001100111011110100100101000100001111011110000100101011111101011001000000111110001011110010101110010011111
001110001001011100100010010000000000011101110101101110...

output:

0
1
0
0
1
0
1
0
0
1
1
0
0
0
1
1
0
1
0
0
0
0
0
1
1
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result:

ok 121 tokens

Test #15:

score: 0
Accepted
time: 47ms
memory: 7336kb

input:

180
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0101011111101011001000000111110001011110010101110010011111001110001001011100100010010000000000011101110101101110100...

output:

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...

result:

ok 181 tokens

Test #16:

score: 0
Accepted
time: 84ms
memory: 8172kb

input:

220
1000101100110100000111111100001001001110000000001100010000100100100110110001010100010000010001001010001110011100101011111001011011100110011101111010010010100010000111101111000010010101111110101100100000011111000101111001
010111001001111100111000100101110010001001000000000001110111010110111010011...

output:

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...

result:

ok 221 tokens

Test #17:

score: 0
Accepted
time: 125ms
memory: 8888kb

input:

250
0010110011010000011111110000100100111000000000110001000010010010011011000101010001000001000100101000111001110010101111100101101110011001110111101001001010001000011110111100001001010111111010110010000001111100010111100101011100100111110011100010010111
001000100100000000000111011101011011101001111...

output:

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...

result:

ok 251 tokens

Test #18:

score: 0
Accepted
time: 154ms
memory: 9376kb

input:

270
101100110100000111111100001001001110000000001100010000100100100110110001010100010000010001001010001110011100101011111001011011100110011101111010010010100010000111101111000010010101111110101100100000011111000101111001010111001001111100111000100101110010001001000000000001
1101110101101110100111111...

output:

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...

result:

ok 271 tokens

Test #19:

score: 0
Accepted
time: 207ms
memory: 10028kb

input:

300
11001101000001111111000010010011100000000011000100001001001001101100010101000100000100010010100011100111001010111110010110111001100111011110100100101000100001111011110000100101011111101011001000000111110001011110010101110010011111001110001001011100100010010000000000011101110101101110100111111110...

output:

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...

result:

ok 301 tokens

Test #20:

score: 0
Accepted
time: 204ms
memory: 10028kb

input:

300
00110100000111111100001001001110000000001100010000100100100110110001010100010000010001001010001110011100101011111001011011100110011101111010010010100010000111101111000010010101111110101100100000011111000101111001010111001001111100111000100101110010001001000000000001110111010110111010011111111010...

output:

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...

result:

ok 301 tokens

Test #21:

score: 0
Accepted
time: 207ms
memory: 9968kb

input:

300
11010000011111110000100100111000000000110001000010010010011011000101010001000001000100101000111001110010101111100101101110011001110111101001001010001000011110111100001001010111111010110010000001111100010111100101011100100111110011100010010111001000100100000000000111011101011011101001111111101001...

output:

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...

result:

ok 301 tokens