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  1.     #include<bits/stdc++.h>
  2.     using namespace std;
  3.     #include <ext/pb_ds/assoc_container.hpp>
  4.     #include <ext/pb_ds/tree_policy.hpp>
  5.     using namespace __gnu_pbds;
  6.     #define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
  7.     #define FAST ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
  8.     typedef long long ll;
  9.     typedef long double ld;
  10.     const int MOD=1e9+7, OO=0x3f3f3f3f;
  11.     const ll LOO=0x3f3f3f3f3f3f3f3f;
  12.     #define all(x) (x).begin(),(x).end()
  13.     #define mm(f, x) memset(f,x,sizeof(f))
  14.     #define f(n) for(int i=0;i<n;++i)
  15.     #define fa(i,a,n) for(int i=(a);i<=(n);++i)
  16.     #define  c(vec) for(auto &x:vec)cin>>x;
  17.     #define ff(vec) for(auto &x:vec)cout<<x<<' ' ;cout<<'\n';
  18.     #define fp(vec) for(auto &x:vec)cout<<x.first<<' '<<x.second<<'\n';
  19.     #define debug(x) cout<<#x<<":"<<x<<endl;
  20.     #define yes cout<<"YES\n";
  21.     #define no cout<<"NO\n";
  22.     #define pb push_back
  23.     #define sz(a) (int)(a).size()
  24.     const long double EPS=1e-7;
  25.     const ll MOD1=1e18+7;
  26.     int dr[]={-1, -1, -1, 0, 1, 1,  1,  0};
  27.     int dc[]={-1,  0,  1, 1, 1, 0, -1, -1};
  28.     int dx[]={1,0,-1,0};
  29.     int dy[]={0,1,0,-1};
  30.  
  31.  
  32.  
  33.     signed  main(){
  34.         FAST
  35.         //freopen("game.in","rt",stdin);
  36.         //freopen("game.out","wt",stdout);
  37.  
  38.         int t;
  39.         cin>>t;
  40.         while(t--){
  41.             ll x;
  42.             cin>>x;
  43.             string s="";
  44.             while(x){
  45.                 s+=('0'+x%2);
  46.                 x/=2;
  47.             }
  48.  
  49.             ll ans=0;
  50.             for(int i=0;i<s.size();i++)if(s[i]=='0')ans+=(1ll<<i);  // 1 long long to avoid overflow
  51.  
  52.             cout<<ans<<'\n';
  53.  
  54.         }
  55.  
  56.         return 0;
  57.     }
Success #stdin #stdout 0.01s 5304KB
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https://ideone.com/9qQ8vS
language:
C++ (gcc 8.3)
created:
17 days ago
visibility:
public

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