QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#18017#992. Number of Colorful MatchingsY25t#AC ✓93ms6476kbC++202.5kb2022-01-15 18:33:492022-05-04 16:41:21

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.
  • [2022-05-04 16:41:21]
  • 评测
  • 测评结果:AC
  • 用时:93ms
  • 内存:6476kb
  • [2022-01-15 18:33:49]
  • 提交

answer

#include<bits/stdc++.h>
#define P 2
#define N 505

inline int fmo(int x){
	return x+((x>>31)&P);
}
inline int fp(int x,int k=P-2){
	int res=1;
	for(;k;k>>=1,x=1ll*x*x%P)
		if(k&1)
			res=1ll*res*x%P;
	return res;
}

int n,a[N][N],b[N][N];
char s[N];

int f[N][N];

int main(){
	scanf("%d",&n);
	for(int i=1;i<=n;i++){
		scanf("%s",s+1);
		for(int j=1;j<=n;j++)
			b[i][j]=s[j]-'0';
	}
	for(int i=1;i<=n;i++){
		scanf("%s",s+1);
		for(int j=1;j<=n;j++)
			a[i][j]=s[j]-'0';
	}
	int flg=1,t=0;
	for(int i=1;i<=n;i++){
		if(!b[i][i])
			for(int j=i+1;j<=n;j++)
				if(b[j][i]){
					flg=fmo(-flg);
					std::swap(a[i],a[j]),std::swap(b[i],b[j]);
					break;
				}
		if(!b[i][i])
			for(int j=i+1;j<=n;j++)
				if(b[i][j]){
					flg=fmo(-flg);
					for(int k=1;k<=n;k++)
						std::swap(a[k][i],a[k][j]),std::swap(b[k][i],b[k][j]);
					break;
				}
		for(;!b[i][i]&&t<n;t++){
			for(int j=1;j<=n;j++)
				b[i][j]=a[i][j],a[i][j]=0;
			for(int j=1;j<i;j++){
				int tmp=1ll*b[i][j]*fp(b[j][j])%P;
				for(int k=1;k<=n;k++){
					a[i][k]=fmo(a[i][k]-1ll*tmp*a[j][k]%P);
					b[i][k]=fmo(b[i][k]-1ll*tmp*b[j][k]%P);
				}
			}
			if(!b[i][i])
				for(int j=i+1;j<=n;j++)
					if(b[i][j]){
						flg=fmo(-flg);
						for(int k=1;k<=n;k++)
							std::swap(a[k][i],a[k][j]),std::swap(b[k][i],b[k][j]);
						break;
					}
		}
		int inv=fp(b[i][i]);
		for(int j=1;j<=n;j++) if(j!=i){
			int tmp=1ll*b[j][i]*inv%P;
			for(int k=1;k<=n;k++){
				a[j][k]=fmo(a[j][k]-1ll*tmp*a[i][k]%P);
				b[j][k]=fmo(b[j][k]-1ll*tmp*b[i][k]%P);
			}
		}
	}
	for(int i=1;i<=n;i++){
		flg=1ll*flg*b[i][i]%P;
		int inv=fp(b[i][i]);
		for(int j=1;j<=n;j++)
			a[i][j]=1ll*a[i][j]*inv%P;
	}
	for(int i=1;i<n;i++){
		if(!a[i+1][i])
			for(int j=i+2;j<=n;j++)
				if(a[j][i]){
					std::swap(a[i+1],a[j]);
					for(int k=1;k<=n;k++)
						std::swap(a[k][i+1],a[k][j]);
					break;
				}
		int inv=fp(a[i+1][i]);
		for(int j=i+2;j<=n;j++){
			int tmp=1ll*a[j][i]*inv%P;
			for(int k=1;k<=n;k++)
				a[j][k]=fmo(a[j][k]-1ll*tmp*a[i+1][k]%P);
			for(int k=1;k<=n;k++)
				a[k][i+1]=fmo(a[k][i+1]+1ll*tmp*a[k][j]%P-P);
		}
	}
	f[0][0]=1;
	for(int i=1;i<=n;i++){
		int tmp=1;
		for(int j=i;j;j--){
			for(int k=0;k<=n;k++)
				f[i][k]=fmo(f[i][k]+1ll*((i-j)&1?fmo(-1):1)*f[j-1][k]%P*a[j][i]%P*tmp%P-P);
			tmp=1ll*tmp*a[j][j-1]%P;
		}
		for(int k=0;k<n;k++)
			f[i][k+1]=fmo(f[i][k+1]+f[i-1][k]-P);
	}
	for(int i=0;i<=n;i++)
		printf("%d\n",i+t>n?0:int(1ll*flg*f[n][i+t]%P));
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 3ms
memory: 5860kb

input:

2
11
10
00
11

output:

0
0
1

result:

ok 3 tokens

Test #2:

score: 0
Accepted
time: 3ms
memory: 3820kb

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: 0ms
memory: 3912kb

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: 5868kb

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: 82ms
memory: 6464kb

input:

300
00000000010111011100011110001011001101000001111111000010010011100000000011000100001001001001101100010101000100000100010010100011100111001010111110010110111001100111011110100100101000100001111011110000100101011111101011001000000111110001011110010101110010011111001110001001011100100010010000000000...

output:

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

result:

ok 301 tokens

Test #6:

score: 0
Accepted
time: 76ms
memory: 6476kb

input:

300
00000001011101110001111000101100110100000111111100001001001110000000001100010000100100100110110001010100010000010001001010001110011100101011111001011011100110011101111010010010100010000111101111000010010101111110101100100000011111000101111001010111001001111100111000100101110010001001000000000001...

output:

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

result:

ok 301 tokens

Test #7:

score: 0
Accepted
time: 76ms
memory: 6424kb

input:

300
00000101110111000111100010110011010000011111110000100100111000000000110001000010010010011011000101010001000001000100101000111001110010101111100101101110011001110111101001001010001000011110111100001001010111111010110010000001111100010111100101011100100111110011100010010111001000100100000000000111...

output:

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

result:

ok 301 tokens

Test #8:

score: 0
Accepted
time: 28ms
memory: 6276kb

input:

200
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

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

result:

ok 201 tokens

Test #9:

score: 0
Accepted
time: 48ms
memory: 6308kb

input:

230
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000...

output:

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

result:

ok 231 tokens

Test #10:

score: 0
Accepted
time: 75ms
memory: 5364kb

input:

270
000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
0000000000000000000000000...

output:

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

result:

ok 271 tokens

Test #11:

score: 0
Accepted
time: 93ms
memory: 6416kb

input:

300
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

0
1
0
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...

result:

ok 301 tokens

Test #12:

score: 0
Accepted
time: 3ms
memory: 5860kb

input:

50
11000111100010110011010000011111110000100100111000
00000011000100001001001001101100010101000100000100
01001010001110011100101011111001011011100110011101
11101001001010001000011110111100001001010111111010
11001000000111110001011110010101110010011111001110
001001011100100010010000000000011101110101...

output:

0
1
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1
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1
1
1
1
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1
1

result:

ok 51 tokens

Test #13:

score: 0
Accepted
time: 6ms
memory: 6020kb

input:

80
00011110001011001101000001111111000010010011100000000011000100001001001001101100
01010100010000010001001010001110011100101011111001011011100110011101111010010010
10001000011110111100001001010111111010110010000001111100010111100101011100100111
110011100010010111001000100100000000000111011101011011...

output:

0
1
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1
1
0
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0
1
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1
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1
1
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0

result:

ok 81 tokens

Test #14:

score: 0
Accepted
time: 8ms
memory: 4500kb

input:

120
011110001011001101000001111111000010010011100000000011000100001001001001101100010101000100000100010010100011100111001010
111110010110111001100111011110100100101000100001111011110000100101011111101011001000000111110001011110010101110010011111
001110001001011100100010010000000000011101110101101110...

output:

0
1
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0

result:

ok 121 tokens

Test #15:

score: 0
Accepted
time: 17ms
memory: 4872kb

input:

180
111000101100110100000111111100001001001110000000001100010000100100100110110001010100010000010001001010001110011100101011111001011011100110011101111010010010100010000111101111000010
0101011111101011001000000111110001011110010101110010011111001110001001011100100010010000000000011101110101101110100...

output:

0
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...

result:

ok 181 tokens

Test #16:

score: 0
Accepted
time: 36ms
memory: 5064kb

input:

220
1000101100110100000111111100001001001110000000001100010000100100100110110001010100010000010001001010001110011100101011111001011011100110011101111010010010100010000111101111000010010101111110101100100000011111000101111001
010111001001111100111000100101110010001001000000000001110111010110111010011...

output:

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...

result:

ok 221 tokens

Test #17:

score: 0
Accepted
time: 53ms
memory: 5196kb

input:

250
0010110011010000011111110000100100111000000000110001000010010010011011000101010001000001000100101000111001110010101111100101101110011001110111101001001010001000011110111100001001010111111010110010000001111100010111100101011100100111110011100010010111
001000100100000000000111011101011011101001111...

output:

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...

result:

ok 251 tokens

Test #18:

score: 0
Accepted
time: 55ms
memory: 6380kb

input:

270
101100110100000111111100001001001110000000001100010000100100100110110001010100010000010001001010001110011100101011111001011011100110011101111010010010100010000111101111000010010101111110101100100000011111000101111001010111001001111100111000100101110010001001000000000001
1101110101101110100111111...

output:

0
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...

result:

ok 271 tokens

Test #19:

score: 0
Accepted
time: 89ms
memory: 5608kb

input:

300
11001101000001111111000010010011100000000011000100001001001001101100010101000100000100010010100011100111001010111110010110111001100111011110100100101000100001111011110000100101011111101011001000000111110001011110010101110010011111001110001001011100100010010000000000011101110101101110100111111110...

output:

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...

result:

ok 301 tokens

Test #20:

score: 0
Accepted
time: 84ms
memory: 6324kb

input:

300
00110100000111111100001001001110000000001100010000100100100110110001010100010000010001001010001110011100101011111001011011100110011101111010010010100010000111101111000010010101111110101100100000011111000101111001010111001001111100111000100101110010001001000000000001110111010110111010011111111010...

output:

1
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...

result:

ok 301 tokens

Test #21:

score: 0
Accepted
time: 84ms
memory: 5608kb

input:

300
11010000011111110000100100111000000000110001000010010010011011000101010001000001000100101000111001110010101111100101101110011001110111101001001010001000011110111100001001010111111010110010000001111100010111100101011100100111110011100010010111001000100100000000000111011101011011101001111111101001...

output:

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...

result:

ok 301 tokens