#include using namespace std; typedef signed long long ll; #undef _P #define _P(...) (void)printf(__VA_ARGS__) #define FOR(x,to) for(x=0;x<(to);x++) #define FORR(x,arr) for(auto& x:arr) #define ITR(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++) #define ALL(a) (a.begin()),(a.end()) #define ZERO(a) memset(a,0,sizeof(a)) #define MINUS(a) memset(a,0xff,sizeof(a)) //------------------------------------------------------- int N; ll A[202020]; void solve() { int i,j,k,l,r,x,y; string s; cin>>N; FOR(i,N) cin>>A[i]; sort(A,A+N); ll ma=0; ll S0=0,S1=0; for(i=1;i*2+1<=N;i++) { S0+=A[i-1]; S1+=A[N+1-i]; ll pat=S1+S0-A[i-1]*(2*i-1); ma=max(ma,pat); } S0=0,S1=0; for(i=1;i*2<=N;i++) { S0+=A[i-1]; S1+=A[N-i]; ll pat=S0+S1-(A[N-i]+A[i-1])*i; ma=max(ma,pat); } cout<