Submission #44810119

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Source Code Expand

#include<iostream>
using namespace std;
#define Ed for(int i=h[x];~i;i=ne[i])
#define Ls(i,l,r) for(int i=l;i<r;++i)
#define Rs(i,l,r) for(int i=l;i>r;--i)
#define Le(i,l,r) for(int i=l;i<=r;++i)
#define Re(i,l,r) for(int i=l;i>=r;--i)
#define L(i,l) for(int i=0;i<l;++i)
#define E(i,l) for(int i=1;i<=l;++i)
#define W(t) while(t--)
#define Wh while

const int N=1010;
int n,k,a[N];
bool st;
int main(){
    #ifndef ONLINE_JUDGE
    // freopen("1.in","r",stdin);
    #endif
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin>>n>>k;
    E(i, k+1){
        cout<<"? ";
        int ii=i+1;
        E(j, k){
            if(ii>k+1)ii=1;
            cout<<ii<<' ';
            ++ii;
        }
        cout<<endl;
        cin>>a[i];
        st^=a[i];
    }
    int sum=0;
    E(i, k+1)a[i]=st^a[i],sum^=i<k?a[i]:0;
    Le(i, k+2, n){
        cout<<"? ";
        E(i, k-1)cout<<i<<' ';
        cout<<i<<endl;
        int x;
        cin>>x;
        a[i]=x^sum;
    }
    cout<<"! ";
    E(i, n)cout<<a[i]<<' ';
    return 0;
}

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Judge Result