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
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
| #include <bits/stdc++.h>
#pragma optimization_level 3
#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx")
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#pragma GCC optimization ("unroll-loops")
using namespace std;
struct PairHash {inline std::size_t operator()(const std::pair<int, int> &v) const { return v.first * 31 + v.second; }};
#define Code ios_base::sync_with_stdio(false);
#define By ios::sync_with_stdio(0);
#define Sumfi cout.tie(NULL);
using ll = long long;
using ld = long double;
using ull = unsigned long long;
const ld PI = 3.14159265358979323846;
const ll INF = 1e18;
const ld EPS = 1e-9;
const ll MAX_N = 202020;
const ll mod = 1e9 + 7;
typedef pair<ll, ll> pll;
typedef vector<pll> vpll;
typedef array<ll,3> all3;
typedef array<ll,5> all5;
typedef vector<all3> vall3;
typedef vector<all5> vall5;
typedef vector<ld> vld;
typedef vector<ll> vll;
typedef vector<vll> vvll;
typedef vector<int> vi;
typedef pair<string, string> pss;
typedef vector<pss> vpss;
typedef vector<string> vs;
typedef vector<vs> vvs;
typedef unordered_set<ll> usll;
typedef unordered_set<pll, PairHash> uspll;
typedef unordered_map<ll, ll> umll;
typedef unordered_map<pll, ll, PairHash> umpll;
#define rep(i,m,n) for(ll i=m;i<n;i++)
#define rrep(i,m,n) for(ll i=n;i>=m;i--)
#define all(a) begin(a), end(a)
#define rall(a) rbegin(a), rend(a)
#define ZERO(a) memset(a,0,sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
#define ASCEND(a) iota(all(a),0)
#define sz(x) ll((x).size())
#define pyes cout<<"Yes\n";
#define pno cout<<"No\n";
#define pneg1 cout<<"-1\n";
#define ppossible cout<<"POSSIBLE\n";
#define pimpossible cout<<"IMPOSSIBLE\n";
#define CASE(x) cout<<"Case #"<<x<<": ";
template <typename T>
void print(T &&t) { cout << t << "\n"; }
template<typename T>
void printv(vector<T>v){ll n=v.size();rep(i,0,n)cout<<v[i]<<" ";cout<<"\n";}
void fileIO() {freopen("input.txt","r",stdin); freopen("output.txt","w",stdout);}
ll __gcd(ll x, ll y) { return !y ? x : __gcd(y, x % y); }
ll __lcm(ll x, ll y) { return x / __gcd(x,y) * y; }
ll modpow(ll n, ll x, ll MOD = mod) { if(!x) return 1; ll res = modpow(n,x>>1,MOD); res = (res * res) % MOD; if(x&1) res = (res * n) % MOD; return res; }
ll vis[11][11][1<<12];
string solve(ll n, vall3& customers, ll time, ll sy, ll sx, vector<pair<char,ll>> op) {
rep(i,0,11) rep(j,0,11) rep(k,0,1<<12) vis[i][j][k] = LLONG_MIN;
ll res = sz(customers) == 0 ? 0 : LLONG_MIN, dy[4]{-1,0,1,0}, dx[4]{0,1,0,-1};
unordered_map<pll, pll, PairHash> mp;
rep(i,0,sz(customers)) {
auto [y,x,c] = customers[i];
mp[{y - 1,x - 1}] = {c,i};
}
queue<array<ll,4>> q;
q.push({sy,sx, 0,0});
vis[sy][sx][0] = 0;
auto operation = [&](ll cost, ll dir) {
auto [o, k] = op[dir];
switch(o) {
case '+': return cost + k;
case '-': return cost - k;
case '*': return cost * k;
case '/': return (ll)floor(1. * cost / k);
default: return LLONG_MIN;
}
};
rep(i,0,time) {
ll sz = q.size();
while(sz--) {
auto [y,x,mask,cost] = q.front(); q.pop();
if(vis[y][x][mask] != cost) continue;
rep(j,0,4) {
ll ny = y + dy[j], nx = x + dx[j], nc = operation(cost, j), nmask = mask;
if(0 <= ny and ny < n and 0 <= nx and nx < n and vis[ny][nx][nmask] < nc) {
vis[ny][nx][nmask] = nc;
q.push({ny,nx,nmask, nc});
if(nmask == ((1<<(sz(customers))) - 1)) res = max(res, nc);
}
if(mp.count({ny,nx})) {
auto [c, bit] = mp[{ny,nx}];
if(mask & (1<<bit)) continue;
nmask |= (1<<bit);
nc += c;
}
if(0 <= ny and ny < n and 0 <= nx and nx < n and vis[ny][nx][nmask] < nc) {
vis[ny][nx][nmask] = nc;
q.push({ny,nx,nmask, nc});
if(nmask == ((1<<(sz(customers))) - 1)) res = max(res, nc);
}
}
}
}
return res == LLONG_MIN ? "IMPOSSIBLE" : to_string(res);
}
int main() {
Code By Sumfi
cout.precision(12);
ll tc = 1;
cin>>tc;
rep(i,1,tc+1) {
ll n,p,m,y,x;
cin>>n>>p>>m>>y>>x;
vector<pair<char,ll>> op(4);
cin>>op[0].first>>op[0].second;
cin>>op[1].first>>op[1].second;
cin>>op[3].first>>op[3].second;
cin>>op[2].first>>op[2].second;
vall3 C(p);
rep(i,0,p) cin>>C[i][0]>>C[i][1]>>C[i][2];
cout<<"Case #"<<i<<": "; print(solve(n,C,m,y - 1,x - 1,op));
}
return 0;
}
|
