#include <bits/stdc++.h>
#pragma GCC target("avx")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
using namespace std;
using ll=long long;
using ld=long double;
using ull=unsigned long long;
using uint=unsigned int;
using pcc=pair<char,char>;
using pii=pair<int,int>;
using pll=pair<ll,ll>;
using pdd=pair<double,double>;
using tuplis=pair<ll,pll>;
using tuplis2=pair<pll,ll>;
template<class T> using pq=priority_queue<T,vector<T>,greater<T>>;
const ll LINF=0x1fffffffffffffff;
const int INF=0x3fffffff;
const ll MOD=1000000007;
const ll MODD=998244353;
const ld DINF=numeric_limits<ld>::infinity();
const ld EPS=1e-9;
const vector<ll>four{0,1,0,-1,0};
#define _overload4(_1,_2,_3,_4,name,...) name
#define _overload3(_1,_2,_3,name,...) name
#define _rep1(n) for(ll i=0;i<n;++i)
#define _rep2(i,n) for(ll i=0;i<n;++i)
#define _rep3(i,a,b) for(ll i=a;i<b;++i)
#define _rep4(i,a,b,c) for(ll i=a;i<b;i+=c)
#define rep(...) _overload4(__VA_ARGS__,_rep4,_rep3,_rep2,_rep1)(__VA_ARGS__)
#define _rrep1(n) for(ll i=n-1;i>=0;i--)
#define _rrep2(i,n) for(ll i=n-1;i>=0;i--)
#define _rrep3(i,a,b) for(ll i=b-1;i>=a;i--)
#define _rrep4(i,a,b,c) for(ll i=a+(b-a-1)/c*c;i>=a;i-=c)
#define rrep(...) _overload4(__VA_ARGS__,_rrep4,_rrep3,_rrep2,_rrep1)(__VA_ARGS__)
#define each(i,a) for(auto &i:a)
#define sum(...) accumulate(range(__VA_ARGS__),0LL)
#define dsum(...) accumulate(range(__VA_ARGS__),double(0))
#define _range(i) (i).begin(),(i).end()
#define _range2(i,k) (i).begin(),(i).begin()+k
#define _range3(i,a,b) (i).begin()+a,(i).begin()+b
#define range(...) _overload3(__VA_ARGS__,_range3,_range2,_range)(__VA_ARGS__)
#define _rrange(i) (i).rbegin(),(i).rend()
#define _rrange2(i,k) (i).rbegin(),(i).rbegin()+k
#define _rrange3(i,a,b) (i).rbegin()+a,(i).rbegin()+b
#define rrange(...) _overload3(__VA_ARGS__,_rrange3,_rrange2,_rrange)(__VA_ARGS__)
#define elif else if
#define unless(a) if(!(a))
#define mp make_pair
#define mt make_tuple
#define INT(...) int __VA_ARGS__;in(__VA_ARGS__)
#define LL(...) ll __VA_ARGS__;in(__VA_ARGS__)
#define ULL(...) ull __VA_ARGS__;in(__VA_ARGS__)
#define STR(...) string __VA_ARGS__;in(__VA_ARGS__)
#define CHR(...) char __VA_ARGS__;in(__VA_ARGS__)
#define DBL(...) double __VA_ARGS__;in(__VA_ARGS__)
#define vec(type,name,...) vector<type> name(__VA_ARGS__)
#define VEC(type,name,size) vector<type> name(size);in(name)
#define vv(type,name,h,...) vector<vector<type>>name(h,vector<type>(__VA_ARGS__))
#define VV(type,name,h,...) vector<vector<type>>name(h,vector<type>(__VA_ARGS__));in(name)
#define vvv(type,name,h,w,...) vector<vector<vector<type>>>name(h,vector<vector<type>>(w,vector<type>(__VA_ARGS__)))
inline constexpr ll gcd(ll a,ll b){if(!a||!b)return 0;while(b){ll c=b;b=a%b;a=c;}return a;}
inline constexpr ll lcm(ll a,ll b){if(!a||!b)return 0;return a*b/gcd(a,b);}
template<class T> inline constexpr T min(vector<T> &v){return *min_element(range(v));}
inline char min(string &v){return *min_element(range(v));}
template<class T> inline constexpr T max(vector<T> &v){return *max_element(range(v));}
inline char max(string &v){return *max_element(range(v));}
inline constexpr ll intpow(ll a,ll b){ll ans=1;for(ll i=1;b;i*=2){if(b&i){b^=i;ans*=a;}a*=a;}return ans;}
inline constexpr ll modpow(ll a,ll b,ll mod = MOD){ll ans=1;for(ll i=1;b;i*=2){if(b&i){b^=i;ans*=a;ans%=mod;}a*=a;a%=mod;}return ans;}
template<typename T>
inline constexpr bool update_min(T &mn,const T &cnt){if(mn>cnt){mn=cnt;return 1;}else return 0;}
template<typename T>
inline constexpr bool update_max(T &mx,const T &cnt){if(mx<cnt){mx=cnt;return 1;}else return 0;}
inline int scan(){ return getchar(); }
inline void scan(int &a){ scanf("%d", &a); }
inline void scan(unsigned &a){ scanf("%u", &a); }
inline void scan(long &a){ scanf("%ld", &a); }
inline void scan(long long &a){ scanf("%lld", &a); }
inline void scan(unsigned long long &a){ scanf("%llu", &a); }
inline void scan(char &a){ cin >> a; }
inline void scan(float &a){ scanf("%f", &a); }
inline void scan(double &a){ scanf("%lf", &a); }
inline void scan(long double &a){ scanf("%Lf", &a); }
inline void scan(vector<bool> &vec){ for(unsigned i = 0; i < vec.size(); i++) { int a; scan(a); vec[i] = a; } }
inline void scan(string &a){ cin >> a; }
template<class T> inline void scan(vector<T> &vec);
template<class T, size_t size> inline void scan(array<T, size> &vec);
template<class T, class L> inline void scan(pair<T, L> &p);
template<class T, size_t size> inline void scan(T (&vec)[size]);
template<class T> inline void scan(vector<T> &vec){ for(auto &i : vec) scan(i); }
template<class T, size_t size> inline void scan(array<T, size> &vec){ for(auto &i : vec) scan(i); }
template<class T, class L> inline void scan(pair<T, L> &p){ scan(p.first); scan(p.second); }
template<class T, size_t size> inline void scan(T (&vec)[size]){ for(auto &i : vec) scan(i); }
template<class T> inline void scan(T &a){ cin>>a; }
inline void in(){}
template <class Head, class... Tail> inline void in(Head &head, Tail&... tail){ scan(head); in(tail...); }
inline void print(){ putchar('\n'); }
inline void print(const bool &a){ printf("%d", a); }
inline void print(const int &a){ printf("%d", a); }
inline void print(const unsigned &a){ printf("%u", a); }
inline void print(const long &a){ printf("%ld", a); }
inline void print(const long long &a){ printf("%lld", a); }
inline void print(const unsigned long long &a){ printf("%llu", a); }
inline void print(const char &a){ printf("%c", a); }
inline void print(const char a[]){ printf("%s", a); }
inline void print(const float &a){ printf("%.10f", a); }
inline void print(const double &a){ printf("%.10f", a); }
inline void print(const long double &a){ printf("%.10Lf", a); }
template<class T> void print(const vector<T> &vec);
template<class T, size_t size> void print(const array<T, size> &vec);
template<class T, class L> void print(const pair<T, L> &p);
template<class T, size_t size> inline void print(const T (&vec)[size]);
template<class T> void print(const vector<T> &vec){ print(vec[0]); for(auto i = vec.begin(); ++i != vec.end(); ){ putchar(' '); print(*i); } }
template<class T, size_t size> void print(const array<T, size> &vec){ print(vec[0]); for(auto i = vec.begin(); ++i != vec.end(); ){ putchar(' '); print(*i); } }
template<class T, class L> void print(const pair<T, L> &p){ print(p.first); putchar(' '); print(p.second); }
template<class T, size_t size> inline void print(const T (&vec)[size]){ print(vec[0]); for(auto i = vec; ++i != end(vec); ){ putchar(' '); print(*i); } }
template<class T> inline void print(const T &a){ cout << a; }
inline int out(){ putchar('\n'); return 0; }
template<class T> inline int out(const T &t){ print(t); putchar('\n'); return 0; }
template<class Head, class... Tail> inline int out(const Head &head, const Tail&... tail){ print(head); putchar(' '); out(tail...); return 0; }
template <class T> inline void err(T t){cerr<<t<<'\n';}
inline void err(){cerr<<'\n';}
inline int yes(const bool &i){return out(i?"yes":"no");}
inline int Yes(const bool &i){return out(i?"Yes":"No");}
inline int YES(const bool &i){return out(i?"YES":"NO");}
inline int Yay(const bool &i){return out(i?"Yay!":":(");}
inline int Possible(const bool &i){return out(i?"Possible":"Impossible");}
inline int POSSIBLE(const bool &i){return out(i?"POSSIBLE":"IMPOSSIBLE");}
inline void Case(ll i){printf("Case #%lld: ",i);}
#define ll int
#define pll pii
#define LINF INF
#define tuplis pair<int,pii>
ll h,w,n;
vec(string,s,500);
vvv(pll,nxt,500,500,4,{LINF,LINF});
inline bool valid(ll x,ll y,ll d){
if(x<0||y<0||x>=h||y>=w)return 0;
if(s[x][y]=='x')return 0;
return 1;
}
inline pll make_next(ll x,ll y,ll d){
if(nxt[x][y][d].first!=LINF)return nxt[x][y][d];
nxt[x][y][d]={-1,-1};
ll d2=d;
if(s[x][y]=='A')d2--;
if(s[x][y]=='C')d2++;
d2&=3;
if(valid(x+four[d2],y+four[d2+1],d2))return nxt[x][y][d]=make_next(x+four[d2],y+four[d2+1],d2);
return nxt[x][y][d]={x,y};
}
int main(){
in(n,w,h);
rep(h)in(s[i]);
rep(h)rep(j,w)rep(k,4)make_next(i,j,k);
ll cost[n+1][n+1][h][w];
bool used[h][w];
rep(n)rep(j,i+1,n+1)fill(cost[i][j][0],cost[i][j][h],LINF);
rep(i,n){
fill(used[0],used[h],false);
auto&at=cost[i][i+1];
queue<pll>q;
rep(j,h)rep(k,w)if(s[j][k]=='1'+i){
at[j][k]=0;
q.push({j,k});
}
while(q.size()){
ll x,y;
tie(x,y)=q.front();
q.pop();
if(used[x][y])continue;
used[x][y]=1;
rep(4){
ll x2,y2;
tie(x2,y2)=nxt[x][y][i];
if(x2==-1)continue;
if(update_min(at[x2][y2],at[x][y]+1))q.push({x2,y2});
}
}
}
rep(i,2,n+1)rep(j,i,n+1){
auto&at=cost[j-i][j];
rep(k,1,i)rep(x,h)rep(y,w)update_min(at[x][y],cost[j-i][j-k][x][y]+cost[j-k][j][x][y]);
queue<pll>q;
pq<tuplis>q2;
rep(x,h)rep(y,w)q2.push({at[x][y],{x,y}});
fill(used[0],used[h],false);
while(q.size()||q2.size()){
ll x,y;
if(q2.empty()){
tie(x,y)=q.front();
q.pop();
}
elif(q.empty()){
tie(x,y)=q2.top().second;
q2.pop();
}
elif(at[q.front().first][q.front().second]<q2.top().first){
tie(x,y)=q.front();
q.pop();
}
else{
tie(x,y)=q2.top().second;
q2.pop();
}
if(used[x][y])continue;
used[x][y]=1;
rep(4){
ll x2,y2;
tie(x2,y2)=nxt[x][y][i];
if(x2==-1)continue;
if(update_min(at[x2][y2],at[x][y]+1))q.push({x2,y2});
}
}
}
ll ans=LINF;
each(i,cost[0][n])update_min(ans,*min_element(i,i+w));
if(ans==LINF)return out(-1);
out(ans);
}
Compilation message
robots.cpp: In function 'void scan(int&)':
robots.cpp:75:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
inline void scan(int &a){ scanf("%d", &a); }
~~~~~^~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
25 ms |
18040 KB |
Output is correct |
| 2 |
Correct |
34 ms |
18048 KB |
Output is correct |
| 3 |
Correct |
29 ms |
17960 KB |
Output is correct |
| 4 |
Correct |
25 ms |
17956 KB |
Output is correct |
| 5 |
Correct |
25 ms |
17996 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
25 ms |
18040 KB |
Output is correct |
| 2 |
Correct |
34 ms |
18048 KB |
Output is correct |
| 3 |
Correct |
29 ms |
17960 KB |
Output is correct |
| 4 |
Correct |
25 ms |
17956 KB |
Output is correct |
| 5 |
Correct |
25 ms |
17996 KB |
Output is correct |
| 6 |
Correct |
25 ms |
18048 KB |
Output is correct |
| 7 |
Correct |
26 ms |
17944 KB |
Output is correct |
| 8 |
Correct |
26 ms |
18040 KB |
Output is correct |
| 9 |
Correct |
28 ms |
17920 KB |
Output is correct |
| 10 |
Correct |
29 ms |
18048 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
25 ms |
18040 KB |
Output is correct |
| 2 |
Correct |
34 ms |
18048 KB |
Output is correct |
| 3 |
Correct |
29 ms |
17960 KB |
Output is correct |
| 4 |
Correct |
25 ms |
17956 KB |
Output is correct |
| 5 |
Correct |
25 ms |
17996 KB |
Output is correct |
| 6 |
Correct |
25 ms |
18048 KB |
Output is correct |
| 7 |
Correct |
26 ms |
17944 KB |
Output is correct |
| 8 |
Correct |
26 ms |
18040 KB |
Output is correct |
| 9 |
Correct |
28 ms |
17920 KB |
Output is correct |
| 10 |
Correct |
29 ms |
18048 KB |
Output is correct |
| 11 |
Correct |
661 ms |
36716 KB |
Output is correct |
| 12 |
Correct |
42 ms |
18560 KB |
Output is correct |
| 13 |
Correct |
386 ms |
30936 KB |
Output is correct |
| 14 |
Correct |
877 ms |
36628 KB |
Output is correct |
| 15 |
Correct |
642 ms |
36544 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
25 ms |
18040 KB |
Output is correct |
| 2 |
Correct |
34 ms |
18048 KB |
Output is correct |
| 3 |
Correct |
29 ms |
17960 KB |
Output is correct |
| 4 |
Correct |
25 ms |
17956 KB |
Output is correct |
| 5 |
Correct |
25 ms |
17996 KB |
Output is correct |
| 6 |
Correct |
25 ms |
18048 KB |
Output is correct |
| 7 |
Correct |
26 ms |
17944 KB |
Output is correct |
| 8 |
Correct |
26 ms |
18040 KB |
Output is correct |
| 9 |
Correct |
28 ms |
17920 KB |
Output is correct |
| 10 |
Correct |
29 ms |
18048 KB |
Output is correct |
| 11 |
Correct |
661 ms |
36716 KB |
Output is correct |
| 12 |
Correct |
42 ms |
18560 KB |
Output is correct |
| 13 |
Correct |
386 ms |
30936 KB |
Output is correct |
| 14 |
Correct |
877 ms |
36628 KB |
Output is correct |
| 15 |
Correct |
642 ms |
36544 KB |
Output is correct |
| 16 |
Execution timed out |
1571 ms |
69180 KB |
Time limit exceeded |
| 17 |
Halted |
0 ms |
0 KB |
- |
