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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
#611523#7006. Rikka with SubsequencesKFCAC ✓682ms4324kbC++98889b2024-10-04 21:20:072024-10-04 21:20:08

Judging History

你现在查看的是最新测评结果

  • [2024-10-04 21:20:08]
  • 评测
  • 测评结果:AC
  • 用时:682ms
  • 内存:4324kb
  • [2024-10-04 21:20:07]
  • 提交

answer

// Hydro submission #66ffeb8555b5e82bc017aaa7@1728048006090
#include<bits/stdc++.h>
#define int long long
using namespace std;
const int N=205,p=1e9+7;
char c[N][N];
int t,n,a[N],f[N][N],sum[N][N];
signed main() {
	cin>>t;
	while(t--) {
		cin>>n;
		for(int i=1; i<=n; i++) cin>>a[i];
		for(int i=1; i<=n; i++) for(int j=1; j<=n; j++) cin>>c[i][j];
		memset(f,0,sizeof(f));
		int ans=0;
		for(int i=1; i<=n; i++) {
			for(int j=1; j<=n; j++) {
				for(int k=1; k<=n; k++) {
					if(c[a[j]][a[i]]=='1') sum[j+1][k+1]=f[j][k];
					else sum[j+1][k+1]=0;
					sum[j+1][k+1]=(sum[j+1][k+1]+sum[j][k+1]+sum[j+1][k]-sum[j][k]+p)%p;
				}
			}
			for(int j=1; j<=n; j++) {
				for(int k=1; k<=n; k++) {
					if(a[i]==a[j]&&a[i]==a[k]) {
						ans=(ans+sum[j][k]+1)%p;
						f[j][k]=(f[j][k]+sum[j][k]+1)%p;
					}
				}
			}
		}
		cout<<ans<<endl;
	}
	return 0;
}

这程序好像有点Bug,我给组数据试试?

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 3968kb

input:

1
4
1 2 1 2
1111
1111
1111
1111

output:

51

result:

ok single line: '51'

Test #2:

score: 0
Accepted
time: 682ms
memory: 4324kb

input:

20
195
4 5 4 3 2 4 3 5 1 5 4 3 4 3 1 5 4 4 5 2 2 2 2 4 1 5 3 4 1 1 1 2 1 1 5 5 4 5 4 5 5 4 5 2 1 2 5 4 5 1 1 3 1 2 2 3 3 5 2 3 3 1 4 4 2 4 2 4 3 4 1 1 1 4 3 5 1 1 3 2 2 5 1 3 1 5 1 5 5 3 5 3 3 2 5 1 3 2 4 1 5 5 1 3 3 2 4 2 3 3 3 4 1 3 3 3 5 5 1 1 4 2 5 1 2 5 4 3 5 1 5 5 5 4 2 2 5 3 2 3 4 1 3 2 1 5 3...

output:

806298135
541285042
48173297
222851978
875793336
100057791
156057874
129923599
551277543
874547790
544405786
653241411
521317929
370918040
803940504
969296122
806596012
469227084
338962879
194278629

result:

ok 20 lines