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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#88462#5827. 异或图ooooxxxx10 3ms4396kbC++141.9kb2023-03-16 11:39:132023-03-16 11:39:15

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-03-16 11:39:15]
  • 评测
  • 测评结果:10
  • 用时:3ms
  • 内存:4396kb
  • [2023-03-16 11:39:13]
  • 提交

answer

#include<iostream>
#include<cstring>
#include<algorithm>
#include<vector>
using namespace std;
const int mod=998244353;
#define int long long
const int N=15;
int n,m,c;
int a[N],A[N];
vector<int>dp[(1<<15)+10];
int ban[(1<<15)+10];
#define rep(i,l,r) for(int i=l;i<=r;i++)
inline int solve(int s){
    vector<int>b;
    int ans=0;
    for(int i=0;i<n;i++)
        if((s>>i)&1) b.push_back(a[i]);
    for(int i=60;i>=0;i--){
        int sum=0;
        for(int x:b)sum^=((x>>(i+1)));
        if(sum==(c>>(i+1))){
            static int f[2][2],g[2][2];
            memset(f,0,sizeof(f));
            f[0][0]=1;
            for(int x:b){
                if((x>>i)&1){
                    int s0=(1ll<<i)%mod;
                    int s1=(x&((1ll<<i)-1))+1;s1%=mod;
                    g[0][0]=f[0][1]*s1;
                    g[0][1]=f[0][0]*s1;
                    g[1][0]=f[1][0]*s0+f[1][1]*s1+f[0][0];
                    g[1][1]=f[1][1]*s0+f[1][0]*s1+f[0][1];
                    rep(u,0,1)rep(v,0,1) f[u][v]=g[u][v]%mod;
                }else{
                    int cur=(x&((1ll<<i)-1))+1;cur%=mod;
                    rep(u,0,1)rep(v,0,1) f[u][v]=f[u][v]*cur%mod;
                }
            }
            ans+=f[1][(c>>i)&1];
            ans%=mod;
        }
    }return ans;
}
int32_t main(){
    ios::sync_with_stdio(false),cin.tie(0),cout.tie(0);
    cin>>n>>m>>c;
    for(int i=0;i<n;i++) cin>>a[i];
    static int p[N],q[N];
    for(int i=0;i<n;i++) p[i]=i;
    sort(p,p+n,[&](int u,int v){
        return a[u]<a[v];
    });
    for(int i=0;i<n;i++) q[p[i]]=i;
    sort(a,a+n);
    for(int i=1;i<=m;i++){
        int x,y;cin>>x>>y;x--,y--;
        ban[(1<<q[x])+(1<<q[y])]=1;
    }
    for(int mid=1;mid<(1<<n);mid<<=1){
        for(int j=0;j<(1<<n);j+=(mid<<1))
            for(int k=0;k<mid;k++)ban[j+k+mid]|=ban[j+k];
    }
    cout<<solve((1<<n)-1);
    // for(int b=60;b>=0;b--){

    // }
}

Details

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Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 0
Wrong Answer
time: 3ms
memory: 4116kb

input:

4 6 2
7 11 14 0
1 2
1 3
2 3
2 4
4 1
4 3

output:

91

result:

wrong answer 1st numbers differ - expected: '44', found: '91'

Subtask #2:

score: 0
Skipped

Dependency #1:

0%

Subtask #3:

score: 10
Accepted

Test #47:

score: 10
Accepted
time: 2ms
memory: 4396kb

input:

14 0 731833687287532167
157552918690640051 900457311668526045 111217720157614956 84140984111060473 814012186135880499 784848789620248379 958953377683017264 105083874298571687 104921429970878846 44983041675142735 871013110538758030 686733907990421995 98063590462078176 495161493555059993

output:

231790380

result:

ok 1 number(s): "231790380"

Test #48:

score: 0
Accepted
time: 1ms
memory: 4268kb

input:

11 0 101435837408688522
638776638580507479 933944392115323974 19098604312360490 142362319980029593 419910251764515410 275591812677260089 770239593400917018 928344484461634421 67340905784404712 378109786925249078 110881245457449811

output:

242383534

result:

ok 1 number(s): "242383534"

Test #49:

score: 0
Accepted
time: 3ms
memory: 4104kb

input:

9 0 100988561775675251
622570387572403506 684352103903274038 784649864569409753 270298495621205212 56183537059869110 346856482529145989 86639702870530669 607198038565138736 14747634008501988

output:

20893166

result:

ok 1 number(s): "20893166"

Test #50:

score: 0
Accepted
time: 3ms
memory: 4116kb

input:

10 0 839910859917247463
611237879350518457 292219463776059962 548211857317940894 822255554598388425 335628456629874391 774414280870858683 882480367082748768 654587410087321403 74330774886125511 22894883233341926

output:

61697734

result:

ok 1 number(s): "61697734"

Subtask #4:

score: 0
Skipped

Dependency #1:

0%