Submission #976060

#	Time	Username	Problem	Language	Result	Execution time	Memory
976060		vjudge1	Awesome Arrowland Adventure (eJOI19_adventure)	C++17	34 / 100	1 ms	348 KiB

adventure

#include<bits/stdc++.h>
using namespace std;

int n, m, ans = 1e9+7;
char g[505][505];
void bf(int x, int y, int putar){
   // cout << x << ' ' << y << ' ' << putar << endl;
    if(x == n && y == m){
        ans = min(ans, putar);
    }else{
        if(g[x][y] == 'N'){
            if(y < m) bf(x, y + 1, putar + 1);
            if(x < n) bf(x + 1, y, putar + 2);
        }else if(g[x][y] == 'E'){
            if(y < m) bf(x, y + 1, putar);
            if(x < n) bf(x + 1, y, putar + 1);
        }else if(g[x][y] == 'S'){
            if(y < m) bf(x, y + 1, putar + 3);
            if(x < n) bf(x + 1, y, putar);
        }else if(g[x][y] == 'W'){
            if(y < m) bf(x, y + 1, putar + 2);
            if(x < n) bf(x + 1, y, putar + 3);
        }
    }
    
}
int main(){
    cin >> n >> m;
    for(int i = 1; i <= n; i++){
        for(int j = 1; j <= m; j++) cin >> g[i][j];
    }
    bf(1, 1, 0);
    if(ans == 1e9+7) cout << -1;
    else cout << ans;
}
/*
3 3
ENS
SXN
WSX

N atas 
E kanan 
S bawah 
W kiri 

N -> E 
E -> S 
S -> W 
W -> N

4 3 
NXE
SNX 
XWN 
NNX 


*/

• Subtask 1: 10 / 10
• Subtask 2: 12 / 12
• Subtask 3: 12 / 12
• Subtask 4: 0 / 16
• Subtask 5: 0 / 50