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Submission #927541

# Submission time Handle Problem Language Result Execution time Memory
927541 2024-02-15T03:09:09 Z Faisal_Saqib Nautilus (BOI19_nautilus) C++17
66 / 100
 1000 ms 73168 KB 
#include <iostream>
#include <bitset>
using namespace std;
char g[250000];
int n,m,M;
char s[5001];
bitset<250000> pos[5002];
bitset<250000> fx[5002];
bool dfs(int x,int y,int ind)
{
  if(x<0 or y<0 or x>=n or y>=m or g[(x*m)+y]=='#')
    return 0;
  if(fx[ind][(x*m)+y])
    return pos[ind][(x*m)+y];
  fx[ind][(x*m)+y]=1;
  if(ind==M)
    return pos[ind][(x*m)+y]=1;
  if(s[ind]=='?')
    pos[ind][(x*m)+y]=(dfs(x-1,y,ind+1)|dfs(x+1,y,ind+1)|dfs(x,y-1,ind+1)|dfs(x,y+1,ind+1));
  else if(s[ind]=='N')
    pos[ind][(x*m)+y]=dfs(x-1,y,ind+1);   
  else if(s[ind]=='S')
    pos[ind][(x*m)+y]=dfs(x+1,y,ind+1);
  else if(s[ind]=='W')
    pos[ind][(x*m)+y]=dfs(x,y-1,ind+1);   
  else if(s[ind]=='E')
    pos[ind][(x*m)+y]=dfs(x,y+1,ind+1);
  return pos[ind][(x*m)+y];
}
int main()
{
  cin.tie(0);
  cout.tie(0);
  ios::sync_with_stdio(0);
  cin>>n>>m>>M;
  for(int i=0;i<n;i++)
    for(int j=0;j<m;j++)
      cin>>g[(i*m)+j];
  for(int j=0;j<M;j++)
    cin>>s[j];
  for(int x=0;x<n;x++)
    for(int y=0;y<m;y++)
      dfs(x,y,0);
  cout<<pos[M].count()<<'\n';
}

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 1372 KB Output is correct
2 Correct 1 ms 1372 KB Output is correct
3 Correct 1 ms 1372 KB Output is correct
4 Correct 2 ms 2908 KB Output is correct
5 Correct 1 ms 1116 KB Output is correct
6 Correct 1 ms 2908 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 1372 KB Output is correct
2 Correct 1 ms 1372 KB Output is correct
3 Correct 1 ms 1372 KB Output is correct
4 Correct 2 ms 2908 KB Output is correct
5 Correct 1 ms 1116 KB Output is correct
6 Correct 1 ms 2908 KB Output is correct
7 Correct 15 ms 1464 KB Output is correct
8 Correct 5 ms 1544 KB Output is correct
9 Correct 2 ms 1368 KB Output is correct
10 Correct 1 ms 1372 KB Output is correct
11 Correct 1 ms 1116 KB Output is correct
12 Correct 17 ms 1372 KB Output is correct
13 Correct 20 ms 1372 KB Output is correct
14 Correct 15 ms 1308 KB Output is correct
15 Correct 1 ms 1372 KB Output is correct
16 Correct 1 ms 1112 KB Output is correct
17 Correct 19 ms 3164 KB Output is correct
18 Correct 20 ms 3164 KB Output is correct
19 Correct 8 ms 3164 KB Output is correct
20 Correct 3 ms 3164 KB Output is correct
21 Correct 1 ms 2908 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 1372 KB Output is correct
2 Correct 1 ms 1372 KB Output is correct
3 Correct 1 ms 1372 KB Output is correct
4 Correct 2 ms 2908 KB Output is correct
5 Correct 1 ms 1116 KB Output is correct
6 Correct 1 ms 2908 KB Output is correct
7 Correct 15 ms 1464 KB Output is correct
8 Correct 5 ms 1544 KB Output is correct
9 Correct 2 ms 1368 KB Output is correct
10 Correct 1 ms 1372 KB Output is correct
11 Correct 1 ms 1116 KB Output is correct
12 Correct 17 ms 1372 KB Output is correct
13 Correct 20 ms 1372 KB Output is correct
14 Correct 15 ms 1308 KB Output is correct
15 Correct 1 ms 1372 KB Output is correct
16 Correct 1 ms 1112 KB Output is correct
17 Correct 19 ms 3164 KB Output is correct
18 Correct 20 ms 3164 KB Output is correct
19 Correct 8 ms 3164 KB Output is correct
20 Correct 3 ms 3164 KB Output is correct
21 Correct 1 ms 2908 KB Output is correct
22 Execution timed out 1042 ms 73168 KB Time limit exceeded
23 Halted 0 ms 0 KB -