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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#626835#7006. Rikka with SubsequencestarjenAC ✓486ms3944kbC++201.3kb2024-10-10 13:27:182024-10-10 13:27:18

Judging History

你现在查看的是最新测评结果

  • [2024-10-10 13:27:18]
  • 评测
  • 测评结果:AC
  • 用时:486ms
  • 内存:3944kb
  • [2024-10-10 13:27:18]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
const int mod=1e9+7;
void add(int &x,int y){
    if((x+=y)>=mod)x-=mod;
}
int solve()
{
    int n;cin>>n;
    vector<int>a(n);
    for(int i=0;i<n;i++)cin>>a[i],a[i]--;
    vector<vector<pair<int,int>>> p(n);
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++)if(a[i]==a[j])p[a[i]].emplace_back(i,j);
    }   
    vector<string> s(n);
    for(int i=0;i<n;i++)cin>>s[i];
    vector<vector<int>>val(n,vector<int>(n));
    for(int i=0;i<n;i++){
        vector<vector<int>>now(n,vector<int>(n));
        for(int j=0;j<n;j++)if(s[j][a[i]]=='1'){
            for(auto [x,y]:p[j])now[x][y]=val[x][y];
        }
        for(int j=0;j<n;j++){
            for(int k=1;k<n;k++){
                add(now[j][k],now[j][k-1]);
            }
        }
        for(int j=1;j<n;j++){
            for(int k=0;k<n;k++)add(now[j][k],now[j-1][k]);
        }
        for(auto [x,y]:p[a[i]]){
            add(val[x][y],1);
            if(x>0&&y>0)add(val[x][y],now[x-1][y-1]);
        }
    }
    int ans=0;
    for(int i=0;i<n;i++)
        for(int j=0;j<n;j++)add(ans,val[i][j]);
    return ans;
}
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    int T;cin>>T;while(T--)cout<<solve()<<"\n";
    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: 0ms
memory: 3552kb

input:

1
4
1 2 1 2
1111
1111
1111
1111

output:

51

result:

ok single line: '51'

Test #2:

score: 0
Accepted
time: 486ms
memory: 3944kb

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