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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
#369995#8285. Shell SortSolitaryDream#TL 2243ms83588kbC++172.0kb2024-03-28 20:42:462024-03-28 20:42:47

Judging History

你现在查看的是最新测评结果

  • [2024-03-28 20:42:47]
  • 评测
  • 测评结果:TL
  • 用时:2243ms
  • 内存:83588kb
  • [2024-03-28 20:42:46]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;

#define int long long

using pii=pair<int,int>;

const int N=31,P=1e9+7;

map<vector<int>,pii> f;

pii merge(const pii &a,const pii &b)
{
    pii w=a;
    if(b.first>w.first)
        w=b;
    else if(b.first==w.first)
        w.second=(w.second+b.second)%P;
    return w;
}

int pos[N][N],cnt[N];

int bef[N][N];

int n,m,d[N];

int calc(vector<int> v)
{
    int cnt=0;
    for(int i=1;i<=m;i++)
    {
        for(int j=0;j<d[i];j++)
            for(int k=j;k<n;k+=d[i])
            {
                for(int t=k;t>=d[i]&&v[t]>v[t-d[i]];t-=d[i])
                    cnt+=v[t]==-1,swap(v[t],v[t-d[i]]);
            }
    }
    return cnt;
}

pii dp(vector<int> s)
{
    if(f.count(s))
        return f[s];
    pii &ret=f[s];
    ret.first=-1e9;
    int hav=0;
    for(int i=0;i<d[1];i++)
        if(s[i])
            hav|=bef[1][s[i]-1];
    bool flag=0;
    for(int i=0;i<d[1];i++)
    {
        if(s[i]==cnt[i])
            continue;
        flag=1;
        s[i]++;
        pii w=dp(s);
        s[i]--;
        int x=pos[i][s[i]];
        vector<int> v(n);
        for(int x=0;x<d[1];x++)
            for(int y=0;y<s[x];y++)
                v[pos[x][y]]=-2;
        v[pos[i][s[i]]]=-1;
        w.first+=calc(v);
        ret=merge(ret,w);
    }
    if(!flag)
        ret.first=0,ret.second=1;
    return ret;
}

signed main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    cin>>n>>m;
    for(int i=1;i<=m;i++)
        cin>>d[i];
    while(d[1]>n)
    {
        m--;
        for(int i=m;i>=1;i--)
            d[i]=d[i+1];
    }
    for(int i=0;i<d[1];i++)
        for(int j=i;j<n;j+=d[1])
            pos[i][cnt[i]++]=j;
    for(int i=1;i<=m;i++)
        for(int j=0;j<n;j++)
        {
            bef[i][j]=(1<<j);
            if(j>=d[i])
                bef[i][j]|=bef[i][j-d[i]];
        }
    vector<int> b(d[1]);
    auto [u,v]=dp(b);
    cout<<u<<" "<<v<<"\n";
}

詳細信息

Test #1:

score: 100
Accepted
time: 0ms
memory: 3596kb

input:

2 2
2 1

output:

1 1

result:

ok 2 number(s): "1 1"

Test #2:

score: 0
Accepted
time: 1ms
memory: 3564kb

input:

5 4
5 4 2 1

output:

6 4

result:

ok 2 number(s): "6 4"

Test #3:

score: 0
Accepted
time: 1ms
memory: 3800kb

input:

8 4
6 3 2 1

output:

15 4

result:

ok 2 number(s): "15 4"

Test #4:

score: 0
Accepted
time: 1ms
memory: 3668kb

input:

8 6
8 7 5 4 2 1

output:

14 2

result:

ok 2 number(s): "14 2"

Test #5:

score: 0
Accepted
time: 0ms
memory: 3648kb

input:

8 3
8 7 1

output:

22 7

result:

ok 2 number(s): "22 7"

Test #6:

score: 0
Accepted
time: 0ms
memory: 3600kb

input:

8 1
1

output:

28 1

result:

ok 2 number(s): "28 1"

Test #7:

score: 0
Accepted
time: 6ms
memory: 4176kb

input:

16 2
6 1

output:

77 15

result:

ok 2 number(s): "77 15"

Test #8:

score: 0
Accepted
time: 40ms
memory: 5568kb

input:

16 8
10 9 8 7 6 5 4 1

output:

57 5

result:

ok 2 number(s): "57 5"

Test #9:

score: 0
Accepted
time: 45ms
memory: 5564kb

input:

16 10
10 9 8 7 6 5 4 3 2 1

output:

57 3

result:

ok 2 number(s): "57 3"

Test #10:

score: 0
Accepted
time: 41ms
memory: 5616kb

input:

16 7
10 9 8 6 5 4 1

output:

49 1

result:

ok 2 number(s): "49 1"

Test #11:

score: 0
Accepted
time: 11ms
memory: 4116kb

input:

16 4
7 6 2 1

output:

52 9

result:

ok 2 number(s): "52 9"

Test #12:

score: 0
Accepted
time: 10ms
memory: 4360kb

input:

22 3
5 3 1

output:

100 1

result:

ok 2 number(s): "100 1"

Test #13:

score: 0
Accepted
time: 0ms
memory: 3652kb

input:

22 1
1

output:

231 1

result:

ok 2 number(s): "231 1"

Test #14:

score: 0
Accepted
time: 406ms
memory: 21672kb

input:

22 4
10 8 3 1

output:

97 4

result:

ok 2 number(s): "97 4"

Test #15:

score: 0
Accepted
time: 441ms
memory: 21900kb

input:

22 5
10 7 6 3 1

output:

92 70

result:

ok 2 number(s): "92 70"

Test #16:

score: 0
Accepted
time: 447ms
memory: 21676kb

input:

22 6
10 9 8 7 3 1

output:

97 1

result:

ok 2 number(s): "97 1"

Test #17:

score: 0
Accepted
time: 514ms
memory: 21588kb

input:

22 10
10 9 8 7 6 5 4 3 2 1

output:

109 1

result:

ok 2 number(s): "109 1"

Test #18:

score: 0
Accepted
time: 16ms
memory: 4480kb

input:

14 2
10 1

output:

61 210

result:

ok 2 number(s): "61 210"

Test #19:

score: 0
Accepted
time: 1ms
memory: 3556kb

input:

18 2
2 1

output:

117 1

result:

ok 2 number(s): "117 1"

Test #20:

score: 0
Accepted
time: 2243ms
memory: 83588kb

input:

30 2
9 1

output:

264 84

result:

ok 2 number(s): "264 84"

Test #21:

score: 0
Accepted
time: 1803ms
memory: 67564kb

input:

29 2
9 1

output:

253 36

result:

ok 2 number(s): "253 36"

Test #22:

score: 0
Accepted
time: 279ms
memory: 16388kb

input:

25 2
8 1

output:

195 8

result:

ok 2 number(s): "195 8"

Test #23:

score: -100
Time Limit Exceeded

input:

30 4
10 9 5 1

output:


result: