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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#339107#6143. 滚榜LYT0122100 ✓451ms456760kbC++141.4kb2024-02-26 19:23:202024-02-26 19:23:21

Judging History

你现在查看的是最新测评结果

  • [2024-02-26 19:23:21]
  • 评测
  • 测评结果:100
  • 用时:451ms
  • 内存:456760kb
  • [2024-02-26 19:23:20]
  • 提交

answer

#include <iostream>
#include <cstring>
#include <algorithm>
#include <cmath>
using namespace std;
const int N=14,M=505;
typedef long long int ll;
int n,m,a[N],p[1<<N],maxid;
ll f[1<<N][N][M],ans;
inline int read()
{
    int x=0,f=1;char c=getchar();
    while(c<'0' || c>'9') {if(c=='-') f=-1;c=getchar();}
    while(c>='0' && c<='9') {x=x*10+c-48,c=getchar();}
    return x*f;
}
inline int lowbit(int x)
{
    return x&-x;
}
int main()
{
    n=read(),m=read();
    for(int i=1;i<=n;i++) a[i]=read();
    a[0]=-1;
    for(int i=1;i<=n;i++)
    {
        p[1<<(i-1)]=i;
        if(a[i]>a[maxid]) maxid=i;
    }
    for(int i=1;i<=n;i++)
    {
        int s=n*(a[maxid]-a[i]+(maxid<i));
        if(s<=m) f[1<<(i-1)][i][s]=1;
    }
    for(int S=1;S<(1<<n);S++)
    {
        int cnt=0;
        for(int j=1;j<=n;j++)
            if((S>>(j-1))&1) cnt++;
        for(int P=S;P!=0;P-=lowbit(P))
        {
            int pos=p[lowbit(P)];
            for(int i=0;i<=m;i++)
            {
                for(int j=1;j<=n;j++)
                {
                    if((S>>(j-1))&1) continue;
                    int s=i+max(a[pos]-a[j]+(pos<j),0)*(n-cnt);
                    if(s<=m) f[S|(1<<j-1)][j][s]+=f[S][pos][i];
                }
            }
        }
    }
    for(int i=1;i<=n;i++)
        for(int j=0;j<=m;j++) ans+=f[(1<<n)-1][i][j];
    printf("%lld",ans);
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 5
Accepted
time: 0ms
memory: 3772kb

input:

2 8
8950 8954

output:

2

result:

ok 1 number(s): "2"

Test #2:

score: 5
Accepted
time: 0ms
memory: 3884kb

input:

2 10
8841 8843

output:

2

result:

ok 1 number(s): "2"

Test #3:

score: 5
Accepted
time: 0ms
memory: 3896kb

input:

3 9
8765 8761 8765

output:

2

result:

ok 1 number(s): "2"

Test #4:

score: 5
Accepted
time: 0ms
memory: 3776kb

input:

3 8
8385 8385 8387

output:

6

result:

ok 1 number(s): "6"

Test #5:

score: 5
Accepted
time: 0ms
memory: 5848kb

input:

3 9
8581 8585 8582

output:

2

result:

ok 1 number(s): "2"

Test #6:

score: 5
Accepted
time: 2ms
memory: 18160kb

input:

8 100
8856 8864 8858 8860 8856 8863 8859 8857

output:

17589

result:

ok 1 number(s): "17589"

Test #7:

score: 5
Accepted
time: 0ms
memory: 18308kb

input:

8 100
8238 8239 8245 8244 8245 8244 8238 8244

output:

32475

result:

ok 1 number(s): "32475"

Test #8:

score: 5
Accepted
time: 4ms
memory: 18448kb

input:

8 100
9804 9806 9807 9802 9801 9803 9801 9806

output:

37012

result:

ok 1 number(s): "37012"

Test #9:

score: 5
Accepted
time: 7ms
memory: 61232kb

input:

10 200
8002 8014 8011 8013 8002 8003 8002 8016 8009 8004

output:

606309

result:

ok 1 number(s): "606309"

Test #10:

score: 5
Accepted
time: 18ms
memory: 61188kb

input:

10 200
8324 8323 8328 8322 8325 8328 8328 8323 8334 8323

output:

2504995

result:

ok 1 number(s): "2504995"

Test #11:

score: 5
Accepted
time: 17ms
memory: 59440kb

input:

10 200
9416 9415 9417 9404 9408 9409 9410 9416 9415 9411

output:

2553164

result:

ok 1 number(s): "2553164"

Test #12:

score: 5
Accepted
time: 17ms
memory: 59488kb

input:

10 200
9422 9430 9425 9425 9425 9423 9431 9428 9432 9434

output:

2687280

result:

ok 1 number(s): "2687280"

Test #13:

score: 5
Accepted
time: 113ms
memory: 231084kb

input:

12 300
9281 9292 9279 9280 9289 9291 9285 9279 9280 9281 9290 9281

output:

197821618

result:

ok 1 number(s): "197821618"

Test #14:

score: 5
Accepted
time: 114ms
memory: 231260kb

input:

12 300
9737 9726 9731 9736 9723 9727 9722 9732 9736 9733 9737 9728

output:

196607151

result:

ok 1 number(s): "196607151"

Test #15:

score: 5
Accepted
time: 109ms
memory: 229292kb

input:

12 300
8707 8708 8712 8704 8705 8704 8716 8711 8713 8712 8702 8710

output:

337047589

result:

ok 1 number(s): "337047589"

Test #16:

score: 5
Accepted
time: 112ms
memory: 229448kb

input:

12 300
9200 9194 9191 9195 9197 9192 9206 9206 9197 9198 9192 9202

output:

164570332

result:

ok 1 number(s): "164570332"

Test #17:

score: 5
Accepted
time: 451ms
memory: 456516kb

input:

13 500
8217 8233 8238 8217 8237 8237 8217 8217 8230 8234 8225 8223 8220

output:

1500488819

result:

ok 1 number(s): "1500488819"

Test #18:

score: 5
Accepted
time: 420ms
memory: 456760kb

input:

13 500
9781 9780 9772 9779 9785 9788 9788 9777 9791 9784 9782 9777 9768

output:

4627756434

result:

ok 1 number(s): "4627756434"

Test #19:

score: 5
Accepted
time: 420ms
memory: 456676kb

input:

13 500
8096 8078 8103 8104 8085 8089 8081 8085 8102 8095 8097 8100 8090

output:

1388414345

result:

ok 1 number(s): "1388414345"

Test #20:

score: 5
Accepted
time: 429ms
memory: 456356kb

input:

13 500
8739 8728 8743 8727 8730 8735 8733 8738 8731 8743 8728 8722 8722

output:

3106123719

result:

ok 1 number(s): "3106123719"

Extra Test:

score: 0
Extra Test Passed