#include <bits/stdc++.h>
#define pb push_back
#define fst first
#define snd second
#define fore(i,a,b) for(ll i=a,ggdem=b;i<ggdem;++i)
#define SZ(x) ((int)x.size())
#define ALL(x) x.begin(),x.end()
#define mset(a,v) memset((a),(v),sizeof(a))
#define FIN ios::sync_with_stdio(0);cin.tie(0);cout.tie(0)
#define imp(v) for(auto edu:v)cout<<edu<<" "; cout<<"\n"
using namespace std;
typedef long long ll;
typedef pair<ll,ll> ii;
const ll MAXN=6e6+5;
ll a[MAXN];
ll n,m,k;
ll cv(ii x){return m*x.fst+x.snd;}
ii cv(ll x){return {x/m,x%m};}
vector<ii>dir={{0,1},{-1,0},{0,-1},{1,0}};
ii operator+(ii a, ii b){return {a.fst+b.fst,a.snd+b.snd};}
bool allowed(ii p){
auto [i,j]=p;
if(i<0||i>=n||j<0||j>=m)return 0;
return 1;
}
ll d[MAXN];
void bfs(ii s){
mset(d,-1);
deque<ii>q;
d[cv(s)]=0;
q.push_front(s);
while(SZ(q)){
auto x=q.front(); q.pop_front();
for(auto add:dir){
auto y=x+add;
if(!allowed(y)||d[cv(y)]!=-1)continue;
if(a[cv(y)])q.pb(y),d[cv(y)]=d[cv(x)]+1;
else q.push_front(y),d[cv(y)]=d[cv(x)];
}
/*if(a[cv(x)]){
}*/
}
}
int main(){FIN;
cin>>n>>m>>k;
ii s,e; cin>>s.fst>>s.snd>>e.fst>>e.snd; s.fst--,s.snd--,e.fst--,e.snd--;
fore(i,0,n*m){
char c; cin>>c;
a[i]=(c=='#');
}
bfs(s);
cout<<d[cv(e)]<<"\n";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
11 ms |
47708 KB |
Output is correct |
2 |
Correct |
7 ms |
47820 KB |
Output is correct |
3 |
Correct |
6 ms |
47708 KB |
Output is correct |
4 |
Correct |
7 ms |
47840 KB |
Output is correct |
5 |
Correct |
6 ms |
47708 KB |
Output is correct |
6 |
Correct |
6 ms |
47708 KB |
Output is correct |
7 |
Correct |
7 ms |
47788 KB |
Output is correct |
8 |
Correct |
6 ms |
47708 KB |
Output is correct |
9 |
Correct |
6 ms |
47708 KB |
Output is correct |
10 |
Correct |
6 ms |
47708 KB |
Output is correct |
11 |
Correct |
6 ms |
47708 KB |
Output is correct |
12 |
Correct |
6 ms |
47708 KB |
Output is correct |
13 |
Correct |
7 ms |
47708 KB |
Output is correct |
14 |
Correct |
7 ms |
47784 KB |
Output is correct |
15 |
Correct |
6 ms |
47704 KB |
Output is correct |
16 |
Correct |
6 ms |
47704 KB |
Output is correct |
17 |
Correct |
7 ms |
47708 KB |
Output is correct |
18 |
Correct |
6 ms |
47824 KB |
Output is correct |
19 |
Correct |
8 ms |
49756 KB |
Output is correct |
20 |
Correct |
7 ms |
47892 KB |
Output is correct |
21 |
Correct |
9 ms |
50268 KB |
Output is correct |
22 |
Correct |
9 ms |
49884 KB |
Output is correct |
23 |
Correct |
9 ms |
49756 KB |
Output is correct |
24 |
Correct |
8 ms |
49756 KB |
Output is correct |
25 |
Correct |
8 ms |
49756 KB |
Output is correct |
26 |
Correct |
9 ms |
50012 KB |
Output is correct |
27 |
Correct |
8 ms |
49932 KB |
Output is correct |
28 |
Correct |
9 ms |
50012 KB |
Output is correct |
29 |
Correct |
11 ms |
50012 KB |
Output is correct |
30 |
Correct |
8 ms |
49756 KB |
Output is correct |
31 |
Correct |
12 ms |
51292 KB |
Output is correct |
32 |
Correct |
12 ms |
50012 KB |
Output is correct |
33 |
Correct |
11 ms |
49892 KB |
Output is correct |
34 |
Correct |
10 ms |
50012 KB |
Output is correct |
35 |
Correct |
9 ms |
49992 KB |
Output is correct |
36 |
Correct |
12 ms |
50012 KB |
Output is correct |
37 |
Correct |
12 ms |
50012 KB |
Output is correct |
38 |
Correct |
13 ms |
50012 KB |
Output is correct |
39 |
Correct |
56 ms |
61184 KB |
Output is correct |
40 |
Correct |
13 ms |
50012 KB |
Output is correct |
41 |
Correct |
12 ms |
50064 KB |
Output is correct |
42 |
Correct |
14 ms |
49896 KB |
Output is correct |
43 |
Correct |
15 ms |
50008 KB |
Output is correct |
44 |
Correct |
31 ms |
54508 KB |
Output is correct |
45 |
Correct |
32 ms |
54620 KB |
Output is correct |
46 |
Correct |
60 ms |
73588 KB |
Output is correct |
47 |
Correct |
64 ms |
60992 KB |
Output is correct |
48 |
Correct |
54 ms |
61012 KB |
Output is correct |
49 |
Correct |
38 ms |
61008 KB |
Output is correct |
50 |
Correct |
41 ms |
61152 KB |
Output is correct |
51 |
Correct |
61 ms |
61520 KB |
Output is correct |
52 |
Correct |
67 ms |
61368 KB |
Output is correct |
53 |
Correct |
53 ms |
61020 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
7 ms |
47808 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
9 ms |
47708 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
7 ms |
47808 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
7 ms |
47808 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
11 ms |
47708 KB |
Output is correct |
2 |
Correct |
7 ms |
47820 KB |
Output is correct |
3 |
Correct |
6 ms |
47708 KB |
Output is correct |
4 |
Correct |
7 ms |
47840 KB |
Output is correct |
5 |
Correct |
6 ms |
47708 KB |
Output is correct |
6 |
Correct |
6 ms |
47708 KB |
Output is correct |
7 |
Correct |
7 ms |
47788 KB |
Output is correct |
8 |
Correct |
6 ms |
47708 KB |
Output is correct |
9 |
Correct |
6 ms |
47708 KB |
Output is correct |
10 |
Correct |
6 ms |
47708 KB |
Output is correct |
11 |
Correct |
6 ms |
47708 KB |
Output is correct |
12 |
Correct |
6 ms |
47708 KB |
Output is correct |
13 |
Correct |
7 ms |
47708 KB |
Output is correct |
14 |
Correct |
7 ms |
47784 KB |
Output is correct |
15 |
Correct |
6 ms |
47704 KB |
Output is correct |
16 |
Correct |
6 ms |
47704 KB |
Output is correct |
17 |
Correct |
7 ms |
47708 KB |
Output is correct |
18 |
Correct |
6 ms |
47824 KB |
Output is correct |
19 |
Correct |
8 ms |
49756 KB |
Output is correct |
20 |
Correct |
7 ms |
47892 KB |
Output is correct |
21 |
Correct |
9 ms |
50268 KB |
Output is correct |
22 |
Correct |
9 ms |
49884 KB |
Output is correct |
23 |
Correct |
9 ms |
49756 KB |
Output is correct |
24 |
Correct |
8 ms |
49756 KB |
Output is correct |
25 |
Correct |
8 ms |
49756 KB |
Output is correct |
26 |
Correct |
9 ms |
50012 KB |
Output is correct |
27 |
Correct |
8 ms |
49932 KB |
Output is correct |
28 |
Correct |
9 ms |
50012 KB |
Output is correct |
29 |
Correct |
11 ms |
50012 KB |
Output is correct |
30 |
Correct |
8 ms |
49756 KB |
Output is correct |
31 |
Correct |
12 ms |
51292 KB |
Output is correct |
32 |
Correct |
12 ms |
50012 KB |
Output is correct |
33 |
Correct |
11 ms |
49892 KB |
Output is correct |
34 |
Correct |
10 ms |
50012 KB |
Output is correct |
35 |
Correct |
9 ms |
49992 KB |
Output is correct |
36 |
Correct |
12 ms |
50012 KB |
Output is correct |
37 |
Correct |
12 ms |
50012 KB |
Output is correct |
38 |
Correct |
13 ms |
50012 KB |
Output is correct |
39 |
Correct |
56 ms |
61184 KB |
Output is correct |
40 |
Correct |
13 ms |
50012 KB |
Output is correct |
41 |
Correct |
12 ms |
50064 KB |
Output is correct |
42 |
Correct |
14 ms |
49896 KB |
Output is correct |
43 |
Correct |
15 ms |
50008 KB |
Output is correct |
44 |
Correct |
31 ms |
54508 KB |
Output is correct |
45 |
Correct |
32 ms |
54620 KB |
Output is correct |
46 |
Correct |
60 ms |
73588 KB |
Output is correct |
47 |
Correct |
64 ms |
60992 KB |
Output is correct |
48 |
Correct |
54 ms |
61012 KB |
Output is correct |
49 |
Correct |
38 ms |
61008 KB |
Output is correct |
50 |
Correct |
41 ms |
61152 KB |
Output is correct |
51 |
Correct |
61 ms |
61520 KB |
Output is correct |
52 |
Correct |
67 ms |
61368 KB |
Output is correct |
53 |
Correct |
53 ms |
61020 KB |
Output is correct |
54 |
Incorrect |
7 ms |
47808 KB |
Output isn't correct |
55 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
11 ms |
47708 KB |
Output is correct |
2 |
Correct |
7 ms |
47820 KB |
Output is correct |
3 |
Correct |
6 ms |
47708 KB |
Output is correct |
4 |
Correct |
7 ms |
47840 KB |
Output is correct |
5 |
Correct |
6 ms |
47708 KB |
Output is correct |
6 |
Correct |
6 ms |
47708 KB |
Output is correct |
7 |
Correct |
7 ms |
47788 KB |
Output is correct |
8 |
Correct |
6 ms |
47708 KB |
Output is correct |
9 |
Correct |
6 ms |
47708 KB |
Output is correct |
10 |
Correct |
6 ms |
47708 KB |
Output is correct |
11 |
Correct |
6 ms |
47708 KB |
Output is correct |
12 |
Correct |
6 ms |
47708 KB |
Output is correct |
13 |
Correct |
7 ms |
47708 KB |
Output is correct |
14 |
Correct |
7 ms |
47784 KB |
Output is correct |
15 |
Correct |
6 ms |
47704 KB |
Output is correct |
16 |
Correct |
6 ms |
47704 KB |
Output is correct |
17 |
Correct |
7 ms |
47708 KB |
Output is correct |
18 |
Correct |
6 ms |
47824 KB |
Output is correct |
19 |
Correct |
8 ms |
49756 KB |
Output is correct |
20 |
Correct |
7 ms |
47892 KB |
Output is correct |
21 |
Correct |
9 ms |
50268 KB |
Output is correct |
22 |
Correct |
9 ms |
49884 KB |
Output is correct |
23 |
Correct |
9 ms |
49756 KB |
Output is correct |
24 |
Correct |
8 ms |
49756 KB |
Output is correct |
25 |
Correct |
8 ms |
49756 KB |
Output is correct |
26 |
Correct |
9 ms |
50012 KB |
Output is correct |
27 |
Correct |
8 ms |
49932 KB |
Output is correct |
28 |
Correct |
9 ms |
50012 KB |
Output is correct |
29 |
Correct |
11 ms |
50012 KB |
Output is correct |
30 |
Correct |
8 ms |
49756 KB |
Output is correct |
31 |
Correct |
12 ms |
51292 KB |
Output is correct |
32 |
Correct |
12 ms |
50012 KB |
Output is correct |
33 |
Correct |
11 ms |
49892 KB |
Output is correct |
34 |
Correct |
10 ms |
50012 KB |
Output is correct |
35 |
Correct |
9 ms |
49992 KB |
Output is correct |
36 |
Correct |
12 ms |
50012 KB |
Output is correct |
37 |
Correct |
12 ms |
50012 KB |
Output is correct |
38 |
Correct |
13 ms |
50012 KB |
Output is correct |
39 |
Correct |
56 ms |
61184 KB |
Output is correct |
40 |
Correct |
13 ms |
50012 KB |
Output is correct |
41 |
Correct |
12 ms |
50064 KB |
Output is correct |
42 |
Correct |
14 ms |
49896 KB |
Output is correct |
43 |
Correct |
15 ms |
50008 KB |
Output is correct |
44 |
Correct |
31 ms |
54508 KB |
Output is correct |
45 |
Correct |
32 ms |
54620 KB |
Output is correct |
46 |
Correct |
60 ms |
73588 KB |
Output is correct |
47 |
Correct |
64 ms |
60992 KB |
Output is correct |
48 |
Correct |
54 ms |
61012 KB |
Output is correct |
49 |
Correct |
38 ms |
61008 KB |
Output is correct |
50 |
Correct |
41 ms |
61152 KB |
Output is correct |
51 |
Correct |
61 ms |
61520 KB |
Output is correct |
52 |
Correct |
67 ms |
61368 KB |
Output is correct |
53 |
Correct |
53 ms |
61020 KB |
Output is correct |
54 |
Incorrect |
7 ms |
47808 KB |
Output isn't correct |
55 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
11 ms |
47708 KB |
Output is correct |
2 |
Correct |
7 ms |
47820 KB |
Output is correct |
3 |
Correct |
6 ms |
47708 KB |
Output is correct |
4 |
Correct |
7 ms |
47840 KB |
Output is correct |
5 |
Correct |
6 ms |
47708 KB |
Output is correct |
6 |
Correct |
6 ms |
47708 KB |
Output is correct |
7 |
Correct |
7 ms |
47788 KB |
Output is correct |
8 |
Correct |
6 ms |
47708 KB |
Output is correct |
9 |
Correct |
6 ms |
47708 KB |
Output is correct |
10 |
Correct |
6 ms |
47708 KB |
Output is correct |
11 |
Correct |
6 ms |
47708 KB |
Output is correct |
12 |
Correct |
6 ms |
47708 KB |
Output is correct |
13 |
Correct |
7 ms |
47708 KB |
Output is correct |
14 |
Correct |
7 ms |
47784 KB |
Output is correct |
15 |
Correct |
6 ms |
47704 KB |
Output is correct |
16 |
Correct |
6 ms |
47704 KB |
Output is correct |
17 |
Correct |
7 ms |
47708 KB |
Output is correct |
18 |
Correct |
6 ms |
47824 KB |
Output is correct |
19 |
Correct |
8 ms |
49756 KB |
Output is correct |
20 |
Correct |
7 ms |
47892 KB |
Output is correct |
21 |
Correct |
9 ms |
50268 KB |
Output is correct |
22 |
Correct |
9 ms |
49884 KB |
Output is correct |
23 |
Correct |
9 ms |
49756 KB |
Output is correct |
24 |
Correct |
8 ms |
49756 KB |
Output is correct |
25 |
Correct |
8 ms |
49756 KB |
Output is correct |
26 |
Correct |
9 ms |
50012 KB |
Output is correct |
27 |
Correct |
8 ms |
49932 KB |
Output is correct |
28 |
Correct |
9 ms |
50012 KB |
Output is correct |
29 |
Correct |
11 ms |
50012 KB |
Output is correct |
30 |
Correct |
8 ms |
49756 KB |
Output is correct |
31 |
Correct |
12 ms |
51292 KB |
Output is correct |
32 |
Correct |
12 ms |
50012 KB |
Output is correct |
33 |
Correct |
11 ms |
49892 KB |
Output is correct |
34 |
Correct |
10 ms |
50012 KB |
Output is correct |
35 |
Correct |
9 ms |
49992 KB |
Output is correct |
36 |
Correct |
12 ms |
50012 KB |
Output is correct |
37 |
Correct |
12 ms |
50012 KB |
Output is correct |
38 |
Correct |
13 ms |
50012 KB |
Output is correct |
39 |
Correct |
56 ms |
61184 KB |
Output is correct |
40 |
Correct |
13 ms |
50012 KB |
Output is correct |
41 |
Correct |
12 ms |
50064 KB |
Output is correct |
42 |
Correct |
14 ms |
49896 KB |
Output is correct |
43 |
Correct |
15 ms |
50008 KB |
Output is correct |
44 |
Correct |
31 ms |
54508 KB |
Output is correct |
45 |
Correct |
32 ms |
54620 KB |
Output is correct |
46 |
Correct |
60 ms |
73588 KB |
Output is correct |
47 |
Correct |
64 ms |
60992 KB |
Output is correct |
48 |
Correct |
54 ms |
61012 KB |
Output is correct |
49 |
Correct |
38 ms |
61008 KB |
Output is correct |
50 |
Correct |
41 ms |
61152 KB |
Output is correct |
51 |
Correct |
61 ms |
61520 KB |
Output is correct |
52 |
Correct |
67 ms |
61368 KB |
Output is correct |
53 |
Correct |
53 ms |
61020 KB |
Output is correct |
54 |
Incorrect |
7 ms |
47808 KB |
Output isn't correct |
55 |
Halted |
0 ms |
0 KB |
- |