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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. #define ll long long
  4. bool on(int mask,int i)
  5. {
  6.     return (mask>>i)&1;
  7. }
  8. int get(int x,int k)
  9. {
  10.     int cnt=0;
  11.     for(int i=20;i>=0;i--)
  12.     {
  13.         if(on(x,i)&&(cnt|(1<<i))<=k)
  14.         {
  15.             cnt+=1<<i;
  16.             x^=1<<i;
  17.         }
  18.     }
  19.     return x;
  20. }
  21. signed main()
  22. {
  23.     ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
  24.     int n,k;cin>>n>>k;
  25.     multiset<int>ms;
  26.     for(int mask=0;mask<(1<<20);mask++)
  27.     {
  28.         ms.insert(get(mask,k));
  29.         if(mask<=50)
  30.         {
  31. //            cout<<mask<<' '<<get(mask,k)<<'\n';
  32.         }
  33.     }
  34. //    return 0;
  35.     map<int,bool>op;
  36.     while(n--)
  37.     {
  38.         int x;cin>>x;
  39.         if(op[x]==0)
  40.         {
  41.             op[x]=1;
  42.             ms.erase(ms.find(get(x,k)));
  43.         }
  44.         else
  45.         {
  46.             op[x]=0;
  47.             ms.insert(get(x,k));
  48.         }
  49.         cout<<*ms.begin()<<'\n';
  50.     }
  51.     return 0;
  52. }
Success #stdin #stdout 0.35s 52700KB
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https://ideone.com/OIhyeL
language:
C++14 (gcc 8.3)
created:
7 days ago
visibility:
public

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