oj.uz

Submission #383283

# Submission time Handle Problem Language Result Execution time Memory
383283 2021-03-29T11:49:58 Z MODDI Awesome Arrowland Adventure (eJOI19_adventure) C++14
100 / 100
 124 ms 21600 KB 
#include <bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define vi vector<int>
#define vl vector<ll>
#define mp make_pair
#define pb push_back
using namespace std;
int n, m;
char mat[510][510];
vector<pii> G[510 * 510];
void dijkstra(){
	int dist[510 * 510];
	for(int i = 0; i <510 * 510; i++)
	{
		dist[i] = 1e9;
	}
	priority_queue<pii> pq;
	pq.push(mp(0,0));
	dist[0] = 0;
	while(!pq.empty()){
		pii state = pq.top();
		pq.pop();
		for(auto next : G[state.second]){
			int next_city = next.first, len = next.second;
			if(dist[next_city] > dist[state.second] + len){
				dist[next_city] = dist[state.second] + len;
				pq.push(mp(-dist[next_city], next_city));
			}
		}
	}
	if(dist[(n - 1) * m + m-1] == 1e9)
		cout<<-1<<endl;
	else
		cout<<dist[(n - 1) * m + m-1]<<endl;
}
inline long long vertex(int a,int b) {
  return a*m + b;
}
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cin>>n>>m;
	for(int i = 0; i < n; i++){
		for(int j = 0; j < m; j++){
      char c;
      cin >> c;
      if (c == 'W') {
        if (j != 0)  G[vertex(i,j)].push_back(mp(vertex(i,j-1),0));
        if (i != 0)  G[vertex(i,j)].push_back(mp(vertex(i-1,j),1));
        if (j != m-1)  G[vertex(i,j)].push_back(mp(vertex(i,j+1),2));
        if (i != n-1)  G[vertex(i,j)].push_back(mp(vertex(i+1,j),3));
      }
      if (c == 'E') {
        if (j != 0)  G[vertex(i,j)].push_back(mp(vertex(i,j-1),2));
        if (i != 0)  G[vertex(i,j)].push_back(mp(vertex(i-1,j),3));
        if (j != m-1)  G[vertex(i,j)].push_back(mp(vertex(i,j+1),0));
        if (i != n-1)  G[vertex(i,j)].push_back(mp(vertex(i+1,j),1)); 
      }
      if (c == 'N') {
        if (j != 0) G[vertex(i,j)].push_back(mp(vertex(i,j-1),3));
        if (i != 0) G[vertex(i,j)].push_back(mp(vertex(i-1,j),0));
        if (j != m-1) G[vertex(i,j)].push_back(mp(vertex(i,j+1),1));
        if (i != n-1) G[vertex(i,j)].push_back(mp(vertex(i+1,j),2));
      }
      if (c == 'S') {
       if (j != 0) G[vertex(i,j)].push_back(mp(vertex(i,j-1),1));
       if (i != 0) G[vertex(i,j)].push_back(mp(vertex(i-1,j),2));
       if (j != m-1) G[vertex(i,j)].push_back(mp(vertex(i,j+1),3));
       if (i != n-1) G[vertex(i,j)].push_back(mp(vertex(i+1,j),0));
      }
    }
  }  
	dijkstra();
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 7404 KB Output is correct
2 Correct 6 ms 7404 KB Output is correct
3 Correct 6 ms 7404 KB Output is correct
4 Correct 6 ms 7532 KB Output is correct
5 Correct 6 ms 7532 KB Output is correct
6 Correct 6 ms 7404 KB Output is correct
7 Correct 6 ms 7404 KB Output is correct
8 Correct 6 ms 7532 KB Output is correct
9 Correct 6 ms 7532 KB Output is correct
10 Correct 6 ms 7404 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 7404 KB Output is correct
2 Correct 6 ms 7404 KB Output is correct
3 Correct 6 ms 7404 KB Output is correct
4 Correct 6 ms 7532 KB Output is correct
5 Correct 6 ms 7532 KB Output is correct
6 Correct 6 ms 7404 KB Output is correct
7 Correct 6 ms 7404 KB Output is correct
8 Correct 6 ms 7532 KB Output is correct
9 Correct 6 ms 7532 KB Output is correct
10 Correct 6 ms 7404 KB Output is correct
11 Correct 6 ms 7424 KB Output is correct
12 Correct 6 ms 7404 KB Output is correct
13 Correct 6 ms 7532 KB Output is correct
14 Correct 6 ms 7404 KB Output is correct
15 Correct 7 ms 7552 KB Output is correct
16 Correct 6 ms 7532 KB Output is correct
17 Correct 6 ms 7532 KB Output is correct
18 Correct 6 ms 7404 KB Output is correct
19 Correct 6 ms 7404 KB Output is correct
20 Correct 6 ms 7532 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 7404 KB Output is correct
2 Correct 6 ms 7404 KB Output is correct
3 Correct 6 ms 7404 KB Output is correct
4 Correct 6 ms 7404 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 7532 KB Output is correct
2 Correct 6 ms 7404 KB Output is correct
3 Correct 6 ms 7532 KB Output is correct
4 Correct 6 ms 7532 KB Output is correct
5 Correct 6 ms 7532 KB Output is correct
6 Correct 6 ms 7532 KB Output is correct
7 Correct 6 ms 7532 KB Output is correct
8 Correct 6 ms 7404 KB Output is correct
9 Correct 6 ms 7404 KB Output is correct
10 Correct 6 ms 7404 KB Output is correct

Subtask #5
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 7404 KB Output is correct
2 Correct 6 ms 7404 KB Output is correct
3 Correct 6 ms 7404 KB Output is correct
4 Correct 6 ms 7532 KB Output is correct
5 Correct 6 ms 7532 KB Output is correct
6 Correct 6 ms 7404 KB Output is correct
7 Correct 6 ms 7404 KB Output is correct
8 Correct 6 ms 7532 KB Output is correct
9 Correct 6 ms 7532 KB Output is correct
10 Correct 6 ms 7404 KB Output is correct
11 Correct 6 ms 7424 KB Output is correct
12 Correct 6 ms 7404 KB Output is correct
13 Correct 6 ms 7532 KB Output is correct
14 Correct 6 ms 7404 KB Output is correct
15 Correct 7 ms 7552 KB Output is correct
16 Correct 6 ms 7532 KB Output is correct
17 Correct 6 ms 7532 KB Output is correct
18 Correct 6 ms 7404 KB Output is correct
19 Correct 6 ms 7404 KB Output is correct
20 Correct 6 ms 7532 KB Output is correct
21 Correct 6 ms 7404 KB Output is correct
22 Correct 6 ms 7404 KB Output is correct
23 Correct 6 ms 7404 KB Output is correct
24 Correct 6 ms 7404 KB Output is correct
25 Correct 6 ms 7532 KB Output is correct
26 Correct 6 ms 7404 KB Output is correct
27 Correct 6 ms 7532 KB Output is correct
28 Correct 6 ms 7532 KB Output is correct
29 Correct 6 ms 7532 KB Output is correct
30 Correct 6 ms 7532 KB Output is correct
31 Correct 6 ms 7532 KB Output is correct
32 Correct 6 ms 7404 KB Output is correct
33 Correct 6 ms 7404 KB Output is correct
34 Correct 6 ms 7404 KB Output is correct
35 Correct 13 ms 8300 KB Output is correct
36 Correct 6 ms 7532 KB Output is correct
37 Correct 14 ms 8556 KB Output is correct
38 Correct 12 ms 9088 KB Output is correct
39 Correct 94 ms 17132 KB Output is correct
40 Correct 84 ms 17132 KB Output is correct
41 Correct 40 ms 17132 KB Output is correct
42 Correct 84 ms 17132 KB Output is correct
43 Correct 124 ms 21600 KB Output is correct
44 Correct 42 ms 17132 KB Output is correct