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Submission #752745

# Submission time Handle Problem Language Result Execution time Memory
752745 2023-06-03T15:14:54 Z vqpahmad Awesome Arrowland Adventure (eJOI19_adventure) C++17
100 / 100
 97 ms 22444 KB 
#include<bits/stdc++.h>
using namespace std;
//#define int long long 
#define ll long long
#define pii pair<int,int>
#define F first
#define S second
#define endl '\n'
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) a.begin(),a.end()
const int mod = 1e9 + 7;
const int N = 502*502;
const ll inf = 1e18;
vector<pii> node[N];
int dis[N];
bool vis[N];
int nm[502][502];
int32_t main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
  int n,m;
  cin >> n >> m;
  int t = 1;
  for (int i=1;i<=n;i++){
    for (int j=1;j<=m;j++){
      nm[i][j] = t++;
    }
  }
  for (int i=1;i<=n;i++){
    for (int j=1;j<=m;j++){
      char x;
      cin >> x;
      int cur = nm[i][j];
      int u = nm[i-1][j];
      int r = nm[i][j+1];
      int d = nm[i+1][j];
      int l = nm[i][j-1];
      if (x=='N'){
        node[cur].pb({u,0});
        node[cur].pb({r,1});
        node[cur].pb({d,2});
        node[cur].pb({l,3});
      }
      if (x=='E'){
        node[cur].pb({r,0});
        node[cur].pb({d,1});
        node[cur].pb({l,2});
        node[cur].pb({u,3});
      }
      if (x=='S'){
        node[cur].pb({d,0});
        node[cur].pb({l,1});
        node[cur].pb({u,2});
        node[cur].pb({r,3});
      }
      if (x=='W'){
        node[cur].pb({l,0});
        node[cur].pb({u,1});
        node[cur].pb({r,2});
        node[cur].pb({d,3});
      }
    }
  }
  memset(dis,0x3f,sizeof(dis));
  priority_queue<pii> pq;
  pq.push({0,nm[1][1]});
  while (sz(pq)){
    int u = pq.top().S;
    int v = -pq.top().F;
    pq.pop();
    if (vis[u]) continue;
    dis[u] = v;
    vis[u] = 1;
    for (auto [it,c] : node[u]){
      if (v+c < dis[it]){
        dis[it] = v+c;
        pq.push({-dis[it],it});
      }
    }
  }
  if (dis[nm[n][m]]>=1e9) cout << -1 << endl;
  else cout << dis[nm[n][m]] << endl;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 4 ms 7252 KB Output is correct
4 Correct 5 ms 7260 KB Output is correct
5 Correct 4 ms 7176 KB Output is correct
6 Correct 4 ms 7196 KB Output is correct
7 Correct 4 ms 7124 KB Output is correct
8 Correct 4 ms 7252 KB Output is correct
9 Correct 4 ms 7144 KB Output is correct
10 Correct 4 ms 7124 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 4 ms 7252 KB Output is correct
4 Correct 5 ms 7260 KB Output is correct
5 Correct 4 ms 7176 KB Output is correct
6 Correct 4 ms 7196 KB Output is correct
7 Correct 4 ms 7124 KB Output is correct
8 Correct 4 ms 7252 KB Output is correct
9 Correct 4 ms 7144 KB Output is correct
10 Correct 4 ms 7124 KB Output is correct
11 Correct 4 ms 7124 KB Output is correct
12 Correct 4 ms 7252 KB Output is correct
13 Correct 5 ms 7252 KB Output is correct
14 Correct 4 ms 7124 KB Output is correct
15 Correct 4 ms 7140 KB Output is correct
16 Correct 4 ms 7252 KB Output is correct
17 Correct 4 ms 7252 KB Output is correct
18 Correct 5 ms 7124 KB Output is correct
19 Correct 4 ms 7144 KB Output is correct
20 Correct 5 ms 7252 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7124 KB Output is correct
2 Correct 4 ms 7124 KB Output is correct
3 Correct 3 ms 7124 KB Output is correct
4 Correct 4 ms 7192 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 5 ms 7152 KB Output is correct
4 Correct 4 ms 7252 KB Output is correct
5 Correct 4 ms 7252 KB Output is correct
6 Correct 4 ms 7252 KB Output is correct
7 Correct 6 ms 7172 KB Output is correct
8 Correct 4 ms 7124 KB Output is correct
9 Correct 4 ms 7144 KB Output is correct
10 Correct 4 ms 7124 KB Output is correct

Subtask #5
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 4 ms 7252 KB Output is correct
4 Correct 5 ms 7260 KB Output is correct
5 Correct 4 ms 7176 KB Output is correct
6 Correct 4 ms 7196 KB Output is correct
7 Correct 4 ms 7124 KB Output is correct
8 Correct 4 ms 7252 KB Output is correct
9 Correct 4 ms 7144 KB Output is correct
10 Correct 4 ms 7124 KB Output is correct
11 Correct 4 ms 7124 KB Output is correct
12 Correct 4 ms 7252 KB Output is correct
13 Correct 5 ms 7252 KB Output is correct
14 Correct 4 ms 7124 KB Output is correct
15 Correct 4 ms 7140 KB Output is correct
16 Correct 4 ms 7252 KB Output is correct
17 Correct 4 ms 7252 KB Output is correct
18 Correct 5 ms 7124 KB Output is correct
19 Correct 4 ms 7144 KB Output is correct
20 Correct 5 ms 7252 KB Output is correct
21 Correct 3 ms 7124 KB Output is correct
22 Correct 4 ms 7124 KB Output is correct
23 Correct 3 ms 7124 KB Output is correct
24 Correct 4 ms 7192 KB Output is correct
25 Correct 4 ms 7252 KB Output is correct
26 Correct 4 ms 7252 KB Output is correct
27 Correct 5 ms 7152 KB Output is correct
28 Correct 4 ms 7252 KB Output is correct
29 Correct 4 ms 7252 KB Output is correct
30 Correct 4 ms 7252 KB Output is correct
31 Correct 6 ms 7172 KB Output is correct
32 Correct 4 ms 7124 KB Output is correct
33 Correct 4 ms 7144 KB Output is correct
34 Correct 4 ms 7124 KB Output is correct
35 Correct 12 ms 8180 KB Output is correct
36 Correct 4 ms 7272 KB Output is correct
37 Correct 11 ms 8452 KB Output is correct
38 Correct 12 ms 9332 KB Output is correct
39 Correct 73 ms 18048 KB Output is correct
40 Correct 79 ms 18124 KB Output is correct
41 Correct 37 ms 17804 KB Output is correct
42 Correct 84 ms 18120 KB Output is correct
43 Correct 97 ms 22444 KB Output is correct
44 Correct 36 ms 17752 KB Output is correct