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https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
35 lines
613 B
C++
35 lines
613 B
C++
#include <iostream>
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#include <string.h>
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#include <stdio.h>
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using namespace std;
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typedef long long LL;
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const int N=20;
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LL w[N];
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LL ans,n;
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LL get(LL x)
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{
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return x==0? 0:get(x-(x&-x))+1;
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}
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void dfs(LL beg,LL num,LL sym)
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{
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ans+=((LL)1<<get(num))*sym;
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for(LL i=beg+1;i<=n;i++)
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dfs(i,num&w[i],-2*sym);
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}
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int main()
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{
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LL k=1,t,i;
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cin>>t;
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while(t--)
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{
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cin>>n;
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for(i=1;i<=n;i++)
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cin>>w[i];
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ans=0;
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for(i=1;i<=n;i++)
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dfs(i,w[i],1);
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cout<<"Case #"<<k++<<": "<<ans<<endl;
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}
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return 0;
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}
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