Submission #776090

#	Time	Username	Problem	Language	Result	Execution time	Memory
776090		vjudge1	Awesome Arrowland Adventure (eJOI19_adventure)	C++17	22 / 100	1 ms	340 KiB

adventure

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define OYY 1000000000005
#define faster ios_base::sync_with_stdio(false); cin.tie(NULL);
#define mid (start+end)/2
#define mod 1000000007
int n,m,dizi[505][505],uzak[505][505];
int cev=0,a,b;
char sor[505][505];

void dijk(){
    priority_queue <pair<int,pair<int,int>>> q;//
    q.push({0,{0,0}});

    while(!q.empty()){
        int a=q.top().second.first;
        int b=q.top().second.second;
        int cost=q.top().first;
        q.pop();
        if((a<0 || a>=m || b<0 || b>=n)){//SINIR dışında
            continue;
        }
        if(uzak[b][a]!=-1)continue;
        uzak[b][a]=cost;
        if(dizi[b][a]==-1)continue;
        for(int i=0;i<4;i++){
            int gx=(dizi[b][a]+i)%4;
            int gy=(dizi[b][a]+i)%4;
            if(gx==0)gx=0;
            if(gx==1)gx=1;
            if(gx==2)gx=0;
            if(gx==3)gx=-1;
//////////////////////////////////////////////////////////////
            if(gy==0)gy=-1;
            if(gy==1)gy=0;
            if(gy==2)gy=1;
            if(gy==3)gy=0;
            q.push({-(cost+i),{a+gx,b+gy}});
        }
    }
}

int32_t main(){
    //  faster
    cin>>n>>m;
    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            cin>>sor[i][j];
            char h=sor[i][j];
            if(h=='N')dizi[i][j]=0;
            else if(h=='E')dizi[i][j]=1;
            else if(h=='S')dizi[i][j]=2;
            else if(h=='W')dizi[i][j]=3;
            else if(h=='X')dizi[i][j]=-1;
            uzak[i][j]=-1;
        }
    }
    if(n==1){
        cev=0;
        bool stop=true;
        for(int i=0;i<n && stop;i++){
            for(int j=0;j<m && stop;j++){
                if(sor[i][j]=='X'){
                    if(!(i==n-1 && j==m-1)){
                        cev=-1;
                        stop=false;
                    }
                }
                else if(sor[i][j]=='N'){
                    cev++;
                }
                else if(sor[i][j]=='S'){
                    cev+=3;
                }
                else if(sor[i][j]=='W'){
                    cev+=2;
                }
                else continue;
            }
        }
        cout<<cev<<'\n';
        return 0;
    }
    dijk();
    cout<<-1*uzak[n-1][m-1]<<'\n';
    return 0;
}

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