1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
#include <bits/stdc++.h>
#define all(vec) vec.begin(),vec.end()
#define pb push_back
#define EB emplace_back
#define EM emplace
#define FI first
#define SE second
#define SZ(a) ((int) a.size())
#define FOR(i, a, b) for (long long i = (a); i <= (b); ++i)
#define ROF(i, a, b) for (long long i = (a); i >= (b); --i)
#define debug(var) cerr << #var <<":"<<var<<"\n";
#define cend cerr<<"-----------\n"
#define lson(var) (var<<1)
#define rson(var) ((var<<1)+1)
#define fsp(x) fixed<<setprecision(x)
using namespace std;
using ll = long long;using ull = unsigned long long;
using DB=double;using LD=long double;
using pdd = pair<DB,DB>;using plb = pair<ll,bool>;
using pll = pair<ll,ll>;using vll=vector<ll>;using vb=vector<bool>;
using tll = tuple<ll,ll,ll>;
using vpll = vector<pll>;using vtll = vector<tll>;
using arr3 = array<ll,3> ;using arr2 = array<ll,2>;
constexpr ll MAXN=(ll)1e6+10,INF=(ll)1e17+9;
constexpr ll mod=(ll)1e9+7;
constexpr double eps=1e-8;const double pi=acos(-1.0);
ll N,M,Q,X,K,T,lT,Y,Z;
inline void __();
signed main()
{
ios::sync_with_stdio(false);
cin.tie(0);cout.tie(0);
cin>>lT;
while(lT--)
__();
return 0;
}
inline void __(){
cin>>N>>X>>Y>>Z;
vll P(N),cnt(N+5);
FOR(i,0,N-1){
cin>>P[i];
++cnt[P[i]];
}
if(N==1){
cout<<X<<"\n";
return;
}
sort(all(P));
vll diff(N+5);
ll jichu=0;
FOR(i,1,N-1){
if(P[i]==P[i-1]){
jichu+=Y;
}else{
jichu+=X;
}
}
jichu+=X;
FOR(i,1,N){
if(cnt[i]==0) continue;
diff[cnt[i]+1]-=1;
diff[1]+=1;
}
vll Sum(N+5);
FOR(i,1,N){
Sum[i]=Sum[i-1]+diff[i];
}
ll ans=jichu;ll lans=jichu;
FOR(i,2,N){
if(Sum[i]<=1) break;
lans+=(Sum[i]-1)*X;
lans-=Sum[i]*Y;
lans+=Z;
ans=max(lans,ans);
}
cout<<ans<<"\n";
}
|