oj.uz

Submission #466211

# Submission time Handle Problem Language Result Execution time Memory
466211 2021-08-18T11:13:54 Z NintsiChkhaidze Awesome Arrowland Adventure (eJOI19_adventure) C++14
10 / 100
 76 ms 102404 KB 
#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define pi pair<int,int>
#define s second
#define f first
#define left (h<<1),l,((l+r)>>1)
#define right ((h<<1)|1),((l+r)>>1) + 1,r
#define int ll
using namespace std;

char A[505][505];
int dp[505][505],n,m;
bool f[505][505],q,F[505][505];

vector <char> v = {'N','E','S','W'};

int go(char x,char y){
    int lf = -1,rg = -1;
    for (int i=0;i<v.size();i++){
        if (v[i] == x) lf = i; 
        if (v[i] == y) rg = i;
    }
    
    if (x == 'X') 
        return 1e9;
    
    if (lf <= rg) 
        return rg - lf;
    
    return 4 - lf + rg;
}
int get(int x,int y){
     if (A[x][y] == 'X' && !(x == n - 1 && y == m - 1)) return 1e9;
     if (x < 0 || x >= n || y < 0 || y >= m) return 1e9;
     if (F[x][y]) return dp[x][y] = 0;
     if (dp[x][y] != -1) return dp[x][y];
     if (f[x][y]) return 1e9;
          
    f[x][y] = 1;
    int a = get(x - 1,y) + go(A[x - 1][y],'S');
    int b = get(x + 1,y) + go(A[x + 1][y],'N');
    int c = get(x,y - 1) + go(A[x][y - 1],'E');
    int d = get(x,y + 1) + go(A[x][y + 1],'W');
     
    return dp[x][y] = min({a,b,c,d});
}

void G(int x,int y){
     if (x < 0 || x >= n || y < 0 || y >= m) 
          return;
     
     F[x][y] = 1;
     if (A[x][y] == 'N') G(x-1,y);
     if (A[x][y] == 'S') G(x+1,y);
     if (A[x][y] == 'E') G(x,y+ 1);
     if (A[x][y] == 'W') G(x,y-1);
}
signed main (){
    ios_base::sync_with_stdio(0),cin.tie(NULL),cout.tie(NULL);
    cin>>n>>m;
    
    for (int i = 0; i < n; i++)
        for (int j = 0; j < m; j++)
            cin >> A[i][j],dp[i][j] = -1;
    
    G(0,0);
    ll ans = get(n - 1,m - 1);
    if (ans >= 1e9) cout<<-1;
    else cout<<ans;
}

Compilation message

adventure.cpp: In function 'long long int go(char, char)':
adventure.cpp:20:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |     for (int i=0;i<v.size();i++){
      |                  ~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 320 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 320 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Runtime error 76 ms 102404 KB Execution killed with signal 9
20 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Runtime error 57 ms 102404 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Runtime error 59 ms 102404 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #5
0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 320 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 320 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Runtime error 76 ms 102404 KB Execution killed with signal 9
20 Halted 0 ms 0 KB -