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#136110#4890. 这是一道集训队胡策题1kri100 ✓769ms13092kbC++142.1kb2023-08-07 10:36:472023-08-07 10:36:49

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.
  • [2023-08-07 10:36:49]
  • 评测
  • 测评结果:100
  • 用时:769ms
  • 内存:13092kb
  • [2023-08-07 10:36:47]
  • 提交

answer

#include <iostream>
#include <cstdio>
#include <bitset>
#include <map>
#define mod 998244353
using namespace std;
int n;
int pow_2[5005];
bitset<5005> a[5005];
int cnt[5005];
bitset<5005> pre[5005],suf[5005];
int q[5005],head,tail;
bitset<5005> vis;
map<int,int> book;
int ans;
int main(){
	cin>>n;
	pow_2[0]=1;
	for (int i=1;i<=n;i++)pow_2[i]=2*pow_2[i-1]%mod;
	for (int i=1;i<=n;i++){
		char str[5005];
		scanf("%s",str+1);
		for (int j=1;j<=n;j++)a[i][j]=str[j]-'0',cnt[i]+=str[j]-'0';
	}
	for (int i=1;i<=n;i++){
		int hash_a=0;
		for (int j=1;j<=n;j++)hash_a=(hash_a+a[i][j]*pow_2[j])%1000000009;
	}
	for (int i=1;i<n;i++)
		for (int j=1;j<n;j++)
			if (cnt[j]>cnt[j+1])swap(a[j],a[j+1]),swap(cnt[j],cnt[j+1]);
	pre[1]=a[1],suf[n]=a[n];
	for (int i=2;i<=n;i++)pre[i]=pre[i-1]|a[i];
	for (int i=n-1;i>=1;i--)suf[i]=suf[i+1]&a[i];
	bitset<5005> S;
	head=1,tail=0;
	for (int i=0;i<=n;i++){
		if (i>=1){
			for (int j=1;j<=n;j++)
				if (S[j]==0&&a[i][j]==1)q[++tail]=j;
			S|=a[i];
			vis[i]=1;
			while(head<=tail){
				int p=q[head];
				head++;
				for (int j=1;j<=n;j++){
					if (a[j][p]==0&&vis[j]==0){
						for (int k=1;k<=n;k++)
							if (S[k]==0&&a[j][k]==1)q[++tail]=k;
						S|=a[j];
						vis[j]=1;
					}
				}
			}
		}
		int hash_S=0;
		for (int j=1;j<=n;j++)hash_S=(hash_S+S[j]*pow_2[j])%1000000009;
		if (book[hash_S]==1)continue;
		book[hash_S]=1;
		bitset<5005> X,Y;
		for (int j=1;j<=n;j++)X[j]=0,Y[j]=1;
		int cnt_S=0;
		for (int j=1;j<=n;j++)cnt_S+=S[j];
		int c=0;
		for (int j=1;j<=n;j++)
			if (cnt[j]==cnt_S)c++;
		if (cnt[n]<cnt_S)X=pre[n];
		else{
			for (int j=1;j<=n;j++)
				if (cnt[j]>=cnt_S){
					if (j>1&&cnt[j-1]<cnt_S)X=pre[j-1];
					break;
				}
		}
		if (cnt[1]>cnt_S)Y=suf[1];
		else{
			for (int j=n;j>=1;j--)
				if (cnt[j]<=cnt_S){
					if (j<n&&cnt[j+1]>cnt_S)Y=suf[j+1];
					break;
				}
		}
		int t=0;
		for (int j=1;j<=n;j++)
			if (S[j]==0&&Y[j]==1)t++;
		if (c==0){
			if (X==S)ans=(ans+pow_2[t])%mod;
		}
		else{
			ans=(ans+pow_2[t])%mod;
			ans=(ans+pow_2[c]-2)%mod;
			if (X==S)ans=(ans+1)%mod;
		}
	}
	cout<<ans<<endl;
	return 0;
}

这程序好像有点Bug,我给组数据试试?

详细

Subtask #1:

score: 5
Accepted

Test #1:

score: 5
Accepted
time: 1ms
memory: 5784kb

input:

10
0000000000
0101111001
0101111001
0101111001
0101111001
0101111001
0101111001
0101111001
0101111001
0101111001

output:

591

result:

ok 1 number(s): "591"

Test #2:

score: 0
Accepted
time: 1ms
memory: 5620kb

input:

10
0000000000
0001100000
0001111111
0001111111
0001100000
0001111111
0001110100
0001110100
0001110100
0001110100

output:

47

result:

ok 1 number(s): "47"

Test #3:

score: 0
Accepted
time: 1ms
memory: 5804kb

input:

10
1000000000
1010000000
1010000000
1010111111
1010100111
1010100111
1010100111
1010100100
1010100100
1010100110

output:

30

result:

ok 1 number(s): "30"

Test #4:

score: 0
Accepted
time: 1ms
memory: 5668kb

input:

10
0000110001
0101100000
0100001111
1011000001
0011010000
1010011111
1000111100
1110111101
1000101100
1000110100

output:

2

result:

ok 1 number(s): "2"

Test #5:

score: 0
Accepted
time: 1ms
memory: 5556kb

input:

10
1000010100
1100001111
1111010111
1010000001
1000110111
0100001001
1000111110
0110100010
1010100010
1010110111

output:

2

result:

ok 1 number(s): "2"

Test #6:

score: 0
Accepted
time: 0ms
memory: 5660kb

input:

10
1011001000
1011111011
0111010011
0011110000
0000011100
0101000000
1001100000
1111010011
1110111101
1100010101

output:

2

result:

ok 1 number(s): "2"

Subtask #2:

score: 15
Accepted

Test #7:

score: 15
Accepted
time: 0ms
memory: 5636kb

input:

20
11110010101111111000
01000101111110100000
10110001010110111101
10111111011011110101
10110101011010111101
00010100011011001011
01111111001000101001
10101101011101011100
11011010110101011110
00010100101000001011
00001010100111101100
00100111010010101001
00000010010110110110
11011111100110111100
010...

output:

2

result:

ok 1 number(s): "2"

Test #8:

score: 0
Accepted
time: 1ms
memory: 5552kb

input:

20
01000110110000100100
00010110001100011000
11111000101101101010
10010001100000010100
01101101000000111100
10010111110101011101
00000101010000000110
00001100101111111110
11111110111001101001
00010000001000101011
00010010110110110011
01011011110010011110
01000101111111011101
00010111001101001110
101...

output:

2

result:

ok 1 number(s): "2"

Test #9:

score: 0
Accepted
time: 0ms
memory: 5552kb

input:

20
00000000000000000000
10011101011010000010
10011101011010000010
10011101011010000010
10011101011010000010
10011101011010000010
10011101011010000010
10011101011010000010
10011101011010000010
10011101011010000010
10011101011010000010
10011101011010000010
10011101011010000010
10011101011010000010
100...

output:

526847

result:

ok 1 number(s): "526847"

Test #10:

score: 0
Accepted
time: 1ms
memory: 5676kb

input:

20
00000000000000000000
11101100001001010011
11101100001001010011
11101100001001010011
11101100001001010011
11101100001001010011
11101100001001010011
11101100001001010011
11101100001001010011
11101100001001010011
11101100001001010011
11101100001001010011
11101100001001010011
11101100001001010011
111...

output:

526335

result:

ok 1 number(s): "526335"

Test #11:

score: 0
Accepted
time: 1ms
memory: 5572kb

input:

20
10000000000000000000
11111000110000000000
11111000110000000000
11111000111111111111
11111000111111111111
11111000111111111111
11111000110000000000
11111000111111111111
11111000110000000000
11111000111111111111
11111000111111111111
11111000111010011011
11111000111010011011
11111000111010011011
111...

output:

740

result:

ok 1 number(s): "740"

Test #12:

score: 0
Accepted
time: 0ms
memory: 5640kb

input:

20
10000000000000000000
11110100100000000000
11110100101111111111
11110100100000000000
11110100100000000000
11110100100000000000
11110100101111111111
11110100100000000000
11110100101111111111
11110100101111111111
11110100100000000000
11110100100010000000
11110100100010000000
11110100100010000000
111...

output:

1150

result:

ok 1 number(s): "1150"

Test #13:

score: 0
Accepted
time: 0ms
memory: 5748kb

input:

20
11111111111111111111
10100111111111111111
10100100000000000000
10100100000000000000
10100111111111111111
10100100000000000000
10100100000000000000
10100111001100101111
10100111001100101111
10100111001100100000
10100111001100101111
10100111001100100000
10100111001100100000
10100111001100101111
101...

output:

189

result:

ok 1 number(s): "189"

Subtask #3:

score: 40
Accepted

Test #14:

score: 40
Accepted
time: 4ms
memory: 6168kb

input:

300
01110011110110110011100111010000101110110001000111111011100101101101101011110101110100110110001110111010101011111010010101001000100011001110110100110000111001011011100000011100000000000001101000010110110000110001110000010110100010110110111000110000100101110011111010001100110111001010000100110110...

output:

2

result:

ok 1 number(s): "2"

Test #15:

score: 0
Accepted
time: 4ms
memory: 5856kb

input:

300
00101101101001110001110111101010000101010101100001110010001101001011011110111000110110101101111100010010011111010011101011110001011011111110001110100110101010100111001110001100111011010110010010111101001001101000000000011101011000111100101000101110111011001111111000111000100111100110101001011101...

output:

2

result:

ok 1 number(s): "2"

Test #16:

score: 0
Accepted
time: 2ms
memory: 5916kb

input:

300
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

936335109

result:

ok 1 number(s): "936335109"

Test #17:

score: 0
Accepted
time: 2ms
memory: 5908kb

input:

300
10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

124904823

result:

ok 1 number(s): "124904823"

Test #18:

score: 0
Accepted
time: 4ms
memory: 6000kb

input:

300
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

923149686

result:

ok 1 number(s): "923149686"

Test #19:

score: 0
Accepted
time: 2ms
memory: 6104kb

input:

300
01111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

254929271

result:

ok 1 number(s): "254929271"

Test #20:

score: 0
Accepted
time: 0ms
memory: 6100kb

input:

300
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

12177

result:

ok 1 number(s): "12177"

Subtask #4:

score: 5
Accepted

Test #21:

score: 5
Accepted
time: 746ms
memory: 12872kb

input:

5000
0000111111000001000100111100110001110111011000101000110111100011111110110011101001111001111101010001111101110011110101010011010010000000001111000111101111010010110100000110111101100000010111111110001001010100101110100010100000011100000101011011101010011111101011000110001001011010000010000101111...

output:

2

result:

ok 1 number(s): "2"

Test #22:

score: 0
Accepted
time: 734ms
memory: 12796kb

input:

5000
0010011001001111110110000001101010000101010111000001101101011100001001011101010000001111010001101001111000101001011011001000111110010001111011011101010000110000010100010110011010000110111110111100110100001010110010001011010010001001101110000000111110111111000110000011010011100001110011111010001...

output:

2

result:

ok 1 number(s): "2"

Test #23:

score: 0
Accepted
time: 769ms
memory: 12880kb

input:

5000
1100111111010100100110101001011111001111000111111010110110010101011010010001111010101001101110111111100100101111010111001111100001100101111111000010100011000110100010010110111111100001100010000111101011110111100010010000001110011110001110110001000101111010110011111001111001011011110010101000000...

output:

2

result:

ok 1 number(s): "2"

Subtask #5:

score: 35
Accepted

Test #24:

score: 35
Accepted
time: 273ms
memory: 12888kb

input:

5000
0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

828414647

result:

ok 1 number(s): "828414647"

Test #25:

score: 0
Accepted
time: 267ms
memory: 12800kb

input:

5000
0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

16621460

result:

ok 1 number(s): "16621460"

Test #26:

score: 0
Accepted
time: 749ms
memory: 12800kb

input:

5000
1010110111100100001010010010100011000101011011111111101001100001101101011001001110101011110101001110010011110111101001011010010001100100111010100100000011101101000100010001011001101100000000000000011001100101111101110010111101000000010001000101110111100011100110101001001000001101111010001111010...

output:

2

result:

ok 1 number(s): "2"

Test #27:

score: 0
Accepted
time: 522ms
memory: 13092kb

input:

5000
1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

541497915

result:

ok 1 number(s): "541497915"

Test #28:

score: 0
Accepted
time: 266ms
memory: 13076kb

input:

5000
0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

288388087

result:

ok 1 number(s): "288388087"

Test #29:

score: 0
Accepted
time: 525ms
memory: 12808kb

input:

5000
0111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

352199570

result:

ok 1 number(s): "352199570"

Test #30:

score: 0
Accepted
time: 542ms
memory: 12992kb

input:

5000
1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

410201481

result:

ok 1 number(s): "410201481"

Extra Test:

score: 0
Extra Test Passed