QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#717673#8552. SticksEXODUSAC ✓202ms224676kbC++171.3kb2024-11-06 18:39:102024-11-06 18:39:17

Judging History

你现在查看的是最新测评结果

  • [2024-11-06 18:39:17]
  • 评测
  • 测评结果:AC
  • 用时:202ms
  • 内存:224676kb
  • [2024-11-06 18:39:10]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
constexpr int N=3e3+7,mod=998244353;

int n;
char s[N][N];
int f[N][N][2],h1[N][N],h2[N][N];
int w1[N][N],w2[N][N];

int main(){
	cin>>n;
	for(int i=1;i<=n;i++)scanf("%s",s[i]+1);
	for(int i=1;i<=n;i++){
		h1[i][0]=w1[i][0]=1;
		bool flg=true;
		for(int j=1;j<=n;j++){
			if(s[i][j]=='0')flg=false;
			if(s[i][j]!='1')h1[i][j]=h1[i][j-1];
			if(s[i][j]!='0'&&flg)h1[i][j]++,w1[i][j]=1;
		}
	}
	for(int i=1;i<=n;i++){
		h2[0][i]=w2[0][i]=1;
		bool flg=true;
		for(int j=1;j<=n;j++){
			if(s[j][i]=='0')flg=false;
			if(s[j][i]!='1')h2[j][i]=h2[j-1][i];
			if(s[j][i]!='0'&&flg)h2[j][i]++,w2[j][i]=1;
		}
	}
	f[n][n][0]=1;
	for(int i=n;i>=0;i--)
		for(int j=n;j>=0;j--){
			int v;
			if(f[i][j][0]){
				v=f[i][j][0];
				if(j)f[i][j-1][1]=(f[i][j-1][1]+(ll)v*h2[i][j])%mod;
				if(i)f[i-1][j][0]=(f[i-1][j][0]+(ll)v*h1[i][j])%mod;
				if(i&&j)f[i-1][j-1][0]=(f[i-1][j-1][0]+(ll)v*w2[i][j]*(h1[i][j-1]-w1[i][j-1]))%mod;
			}
			if(f[i][j][1]){
				v=f[i][j][1];
				if(j)f[i][j-1][1]=(f[i][j-1][1]+(ll)v*h2[i][j])%mod;
				if(i&&j)f[i-1][j-1][0]=(f[i-1][j-1][0]+(ll)v*w2[i][j]*(h1[i][j-1]-w1[i][j-1]))%mod;
			}
		}
	printf("%d\n",(f[0][0][0]+f[0][0][1])%mod);
	return 0;
}

这程序好像有点Bug,我给组数据试试?

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 2ms
memory: 14196kb

input:

2
??
??

output:

14

result:

ok 1 number(s): "14"

Test #2:

score: 0
Accepted
time: 0ms
memory: 14144kb

input:

5
??1??
?1??0
??0??
???1?
??1??

output:

3144

result:

ok 1 number(s): "3144"

Test #3:

score: 0
Accepted
time: 0ms
memory: 16044kb

input:

10
0000000000
??????????
??????????
??????????
??????????
??????????
??????????
??????????
??????????
??????????

output:

361458985

result:

ok 1 number(s): "361458985"

Test #4:

score: 0
Accepted
time: 108ms
memory: 201960kb

input:

3000
??????????????????????????????????????????????????????????0?????????????????????0??????????????????????????????????????????????????????????????????????????????????????0???????????????????????????????????????????0???????????????????????????????????????????????????????????????????????????????????...

output:

56427841

result:

ok 1 number(s): "56427841"

Test #5:

score: 0
Accepted
time: 127ms
memory: 224616kb

input:

3000
????????????????????????????????????????0??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????...

output:

145247225

result:

ok 1 number(s): "145247225"

Test #6:

score: 0
Accepted
time: 149ms
memory: 224624kb

input:

3000
???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????...

output:

925248762

result:

ok 1 number(s): "925248762"

Test #7:

score: 0
Accepted
time: 183ms
memory: 224608kb

input:

3000
???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????...

output:

845505610

result:

ok 1 number(s): "845505610"

Test #8:

score: 0
Accepted
time: 184ms
memory: 224620kb

input:

3000
???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????...

output:

123028256

result:

ok 1 number(s): "123028256"

Test #9:

score: 0
Accepted
time: 191ms
memory: 224676kb

input:

3000
???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????1???1??????????????????????????????????????????????????????????????????????1????????????????????????????????????????????????????????????????...

output:

242286033

result:

ok 1 number(s): "242286033"

Test #10:

score: 0
Accepted
time: 183ms
memory: 224616kb

input:

3000
??????????????????????????1????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????...

output:

448817936

result:

ok 1 number(s): "448817936"

Test #11:

score: 0
Accepted
time: 182ms
memory: 224488kb

input:

3000
???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????...

output:

621258555

result:

ok 1 number(s): "621258555"

Test #12:

score: 0
Accepted
time: 171ms
memory: 224536kb

input:

3000
???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????...

output:

552098298

result:

ok 1 number(s): "552098298"

Test #13:

score: 0
Accepted
time: 180ms
memory: 224620kb

input:

3000
???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????...

output:

190431651

result:

ok 1 number(s): "190431651"

Test #14:

score: 0
Accepted
time: 124ms
memory: 178944kb

input:

3000
???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????...

output:

0

result:

ok 1 number(s): "0"

Test #15:

score: 0
Accepted
time: 202ms
memory: 224524kb

input:

3000
???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????...

output:

641634738

result:

ok 1 number(s): "641634738"

Test #16:

score: 0
Accepted
time: 172ms
memory: 213284kb

input:

3000
???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????...

output:

434138343

result:

ok 1 number(s): "434138343"

Test #17:

score: 0
Accepted
time: 185ms
memory: 224488kb

input:

3000
???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????...

output:

70334815

result:

ok 1 number(s): "70334815"

Test #18:

score: 0
Accepted
time: 172ms
memory: 224620kb

input:

3000
???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????...

output:

26692788

result:

ok 1 number(s): "26692788"

Test #19:

score: 0
Accepted
time: 199ms
memory: 224540kb

input:

3000
???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????...

output:

513359183

result:

ok 1 number(s): "513359183"

Test #20:

score: 0
Accepted
time: 165ms
memory: 224492kb

input:

3000
???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????...

output:

144382583

result:

ok 1 number(s): "144382583"

Test #21:

score: 0
Accepted
time: 0ms
memory: 14032kb

input:

1
0

output:

1

result:

ok 1 number(s): "1"

Test #22:

score: 0
Accepted
time: 0ms
memory: 14124kb

input:

1
1

output:

1

result:

ok 1 number(s): "1"

Test #23:

score: 0
Accepted
time: 0ms
memory: 14112kb

input:

2
10
01

output:

0

result:

ok 1 number(s): "0"

Test #24:

score: 0
Accepted
time: 133ms
memory: 170456kb

input:

3000
1???11111??1???1?1?1111?1111??11?11?????11?1?1?1?1?1???111???111???11?1???11?11??1?11???1??111???11??1????1??1?111??1111?1??1?1?1?1111?1??11?111?1?1??11???11?1?1111??11???????1????1???1?1??111?11?1??1111?1111?1????11?11?1??1?1???1????11?1111?1?1?1??1111???1?11?111?1????1?1?11?11???1???????111?1...

output:

354584112

result:

ok 1 number(s): "354584112"

Test #25:

score: 0
Accepted
time: 125ms
memory: 168992kb

input:

3000
111?1111??11??1?1??1???1?????111???1?11111??1?111?1??1?1????11?11111??1??1?11??11????1??11??11?1???1111???1?11?111?11?1???1?11?11?111?11??1???????1?1??11?1111??????1?1??1111????111111111???1?111??1???111???1?11??11?1??1?11??1?1?111?????1??11?1????1???11??1?11?11111?1111??1?1?1?1???1?11111?1?111...

output:

46093564

result:

ok 1 number(s): "46093564"

Test #26:

score: 0
Accepted
time: 76ms
memory: 170792kb

input:

3000
1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

1

result:

ok 1 number(s): "1"

Test #27:

score: 0
Accepted
time: 72ms
memory: 170764kb

input:

3000
1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

1

result:

ok 1 number(s): "1"

Extra Test:

score: 0
Extra Test Passed