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| #include <bits/stdc++.h>
#define int long long
#define IOS ios::sync_with_stdio(0),cin.tie(0)
using namespace std;
int n,m = 0,arr[21];
void dp(){
int ans = LONG_LONG_MAX;
for(int i=0;i<1<<n;i++){
int sum = 0;
for(int j=0;j<n;j++){
if(1<<j & i)sum += arr[j];
}
ans = min(ans,abs(m - sum - sum));
}
cout<<ans<<"\n";
}
signed main(){
IOS;
cin>>n;
for(int i=0;i<n;i++){
cin>>arr[i];
m += arr[i];
}
dp();
}
|