oj.uz

Submission #999895

# Submission time Handle Problem Language Result Execution time Memory
999895 2024-06-16T08:43:33 Z vjudge1 Awesome Arrowland Adventure (eJOI19_adventure) C++14
100 / 100
 81 ms 60752 KB 
/*       ==========================
        | Bismillahirrahmanirrahim | ⠀⠀ 
         ==========================
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠸⠁⠸⢳⡄⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢠⠃⠀⠀⢸⠸⠀⡠⣄⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡠⠃⠀⠀⢠⣞⣀⡿⠀⠀⣧⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⣠⡖⠁⠀⠀⠀⢸⠈⢈⡇⠀⢀⡏⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⡴⠩⢠⡴⠀⠀⠀⠀⠀⠈⡶⠉⠀⠀⡸⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⢀⠎⢠⣇⠏⠀⠀⠀⠀⠀⠀⠀⠁⠀⢀⠄⡇⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⢠⠏⠀⢸⣿⣴⠀⠀⠀⠀⠀⠀⣆⣀⢾⢟⠴⡇⠀⠀⠀⠀⠀<===== this is wolf, not everest
⠀⠀⠀⠀⠀⢀⣿⠀⠠⣄⠸⢹⣦⠀⠀⡄⠀⠀⢋⡟⠀⠀⠁⣇⠀⠀⠀⠀⠀
⠀⠀⠀⠀⢀⡾⠁⢠⠀⣿⠃⠘⢹⣦⢠⣼⠀⠀⠉⠀⠀⠀⠀⢸⡀⠀⠀⠀⠀
⠀⠀⢀⣴⠫⠤⣶⣿⢀⡏⠀⠀⠘⢸⡟⠋⠀⠀⠀⠀⠀⠀⠀⠀⢳⠀⠀⠀⠀
⠐⠿⢿⣿⣤⣴⣿⣣⢾⡄⠀⠀⠀⠀⠳⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢣⠀⠀⠀
⠀⠀⠀⣨⣟⡍⠉⠚⠹⣇⡄⠀⠀⠀⠀⠀⠀⠀⠀⠈⢦⠀⠀⢀⡀⣾⡇⠀⠀
⠀⠀⢠⠟⣹⣧⠃⠀⠀⢿⢻⡀⢄⠀⠀⠀⠀⠐⣦⡀⣸⣆⠀⣾⣧⣯⢻⠀⠀
⠀⠀⠘⣰⣿⣿⡄⡆⠀⠀⠀⠳⣼⢦⡘⣄⠀⠀⡟⡷⠃⠘⢶⣿⡎⠻⣆⠀⠀
⠀⠀⠀⡟⡿⢿⡿⠀⠀⠀⠀⠀⠙⠀⠻⢯⢷⣼⠁⠁⠀⠀⠀⠙⢿⡄⡈⢆⠀
⠀⠀⠀⠀⡇⣿⡅⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠙⠦⠀⠀⠀⠀⠀⠀⡇⢹⢿⡀
⠀⠀⠀⠀⠁⠛⠓⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠼⠇⠁ 

m : 11059739 -> l ~23
p : 4567896467
*/
#pragma GCC optimize("O3", "inline")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
using namespace std;
#define all(v) v.begin(), v.end()
#define ins insert
#define pb push_back
#define int long long int
#define pii pair<int, int>
#define str string
#define endl '\n'
#define drop(x) cout<<(x)<<endl;return;
// mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
template <class T> using ot = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

const int mod = 998244353, sze =1e6 + 10, inf = 1e9, prime = 4567896467;



vector<pair<int,int>> graph[sze];
int dist[sze];
int yc[sze];

int cc(char a,char b){
    if(yc[a]<=yc[b]){
        return yc[b]-yc[a];
    }
    return 4 - yc[a] + yc[b];
}
int used[sze];
pii p[600][600];
void mal(){
    int n,m;
    cin>>n>>m;
    yc['N']=0;
    yc['E']=1;
    yc['S']=2;
    yc['W']=3;
    vector<char> yonler = {'N','E','S','W'};
    auto idx = [&](int a,int b){
        return a *m +b;
    };  
    for(int i=0;i<sze;i++){
        dist[i]=inf;
    }
    vector<vector<char>> arr(n,vector<char>(m));
    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            cin>>arr[i][j];
        }
    }
    // cout<<cc('W','S')<<endl;
    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){

            if(arr[i][j]!='X'){

                for(auto v:yonler){
                    
                    int c = cc(arr[i][j],v);

                    int i1 = i;
                    int j1 = j;

                    if(v=='E'){
                        j1++;
                    }
                    else if(v=='S'){
                        i1++;
                    }
                    else if(v=='N'){
                        i1--;
                    }
                    else{
                        j1--;
                    }

                    if(i1>=0 && j1>=0 && i1<n && j1<m){
                        // cout<<i<<":"<<j<<" -> "<<i1<<":"<<j1<<" cost:"<<c<< " p-----p " <<v<<endl;
                        graph[idx(i,j)].pb( {  idx(i1,j1) , c });
                    }


                }
                
            }
        }
    }

    set<pair<int,int>> q;
    dist[idx(0,0)]=0;
    q.insert({0,idx(0,0)});
    p[0][0]={-1,-1};
    while(!q.empty()){
        pii node = *q.begin();
        q.erase(q.begin());

        for(auto v:graph[node.second]){

            if(dist[v.first] > dist[node.second] + v.second){
                q.erase({dist[v.first],v.first});
                dist[v.first]=dist[node.second]+v.second;
                p[v.first/m][v.first%m] = {node.second/m,node.second%m};
                // cout<<node.second/m<<":"<<node.second%m<<" ->"<< v.first/m<<":"<<v.first%m<<" c:"<<dist[v.first] << endl;
                q.insert({dist[v.first],v.first});
            }


        }
    }

    // cout<<p[n-1][m-1].first<<" "<<p[n-1][m-1].second<<endl;
    int ans=dist[idx(n-1,m-1)];
    if(ans>=inf){
        ans=-1;
    }
    drop(ans);

}

signed main() {
    cin.tie(0)->sync_with_stdio(0);
    int tt = 1;
    // cin>>tt;

    while (tt--) mal();
}

Compilation message

adventure.cpp: In function 'long long int cc(char, char)':
adventure.cpp:51:11: warning: array subscript has type 'char' [-Wchar-subscripts]
   51 |     if(yc[a]<=yc[b]){
      |           ^
adventure.cpp:51:18: warning: array subscript has type 'char' [-Wchar-subscripts]
   51 |     if(yc[a]<=yc[b]){
      |                  ^
adventure.cpp:52:19: warning: array subscript has type 'char' [-Wchar-subscripts]
   52 |         return yc[b]-yc[a];
      |                   ^
adventure.cpp:52:25: warning: array subscript has type 'char' [-Wchar-subscripts]
   52 |         return yc[b]-yc[a];
      |                         ^
adventure.cpp:54:19: warning: array subscript has type 'char' [-Wchar-subscripts]
   54 |     return 4 - yc[a] + yc[b];
      |                   ^
adventure.cpp:54:27: warning: array subscript has type 'char' [-Wchar-subscripts]
   54 |     return 4 - yc[a] + yc[b];
      |                           ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 34396 KB Output is correct
2 Correct 7 ms 34252 KB Output is correct
3 Correct 8 ms 34396 KB Output is correct
4 Correct 7 ms 34648 KB Output is correct
5 Correct 8 ms 34396 KB Output is correct
6 Correct 7 ms 34396 KB Output is correct
7 Correct 7 ms 34264 KB Output is correct
8 Correct 7 ms 34396 KB Output is correct
9 Correct 7 ms 34264 KB Output is correct
10 Correct 8 ms 34396 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 34396 KB Output is correct
2 Correct 7 ms 34252 KB Output is correct
3 Correct 8 ms 34396 KB Output is correct
4 Correct 7 ms 34648 KB Output is correct
5 Correct 8 ms 34396 KB Output is correct
6 Correct 7 ms 34396 KB Output is correct
7 Correct 7 ms 34264 KB Output is correct
8 Correct 7 ms 34396 KB Output is correct
9 Correct 7 ms 34264 KB Output is correct
10 Correct 8 ms 34396 KB Output is correct
11 Correct 8 ms 34396 KB Output is correct
12 Correct 7 ms 34396 KB Output is correct
13 Correct 8 ms 34396 KB Output is correct
14 Correct 8 ms 34396 KB Output is correct
15 Correct 7 ms 34396 KB Output is correct
16 Correct 7 ms 34436 KB Output is correct
17 Correct 8 ms 34252 KB Output is correct
18 Correct 7 ms 34408 KB Output is correct
19 Correct 8 ms 34396 KB Output is correct
20 Correct 7 ms 34396 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 34392 KB Output is correct
2 Correct 8 ms 34424 KB Output is correct
3 Correct 8 ms 34236 KB Output is correct
4 Correct 8 ms 34392 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 34396 KB Output is correct
2 Correct 8 ms 34396 KB Output is correct
3 Correct 7 ms 34396 KB Output is correct
4 Correct 7 ms 34460 KB Output is correct
5 Correct 7 ms 34396 KB Output is correct
6 Correct 7 ms 34396 KB Output is correct
7 Correct 7 ms 34248 KB Output is correct
8 Correct 8 ms 34392 KB Output is correct
9 Correct 8 ms 34648 KB Output is correct
10 Correct 7 ms 34396 KB Output is correct

Subtask #5
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 34396 KB Output is correct
2 Correct 7 ms 34252 KB Output is correct
3 Correct 8 ms 34396 KB Output is correct
4 Correct 7 ms 34648 KB Output is correct
5 Correct 8 ms 34396 KB Output is correct
6 Correct 7 ms 34396 KB Output is correct
7 Correct 7 ms 34264 KB Output is correct
8 Correct 7 ms 34396 KB Output is correct
9 Correct 7 ms 34264 KB Output is correct
10 Correct 8 ms 34396 KB Output is correct
11 Correct 8 ms 34396 KB Output is correct
12 Correct 7 ms 34396 KB Output is correct
13 Correct 8 ms 34396 KB Output is correct
14 Correct 8 ms 34396 KB Output is correct
15 Correct 7 ms 34396 KB Output is correct
16 Correct 7 ms 34436 KB Output is correct
17 Correct 8 ms 34252 KB Output is correct
18 Correct 7 ms 34408 KB Output is correct
19 Correct 8 ms 34396 KB Output is correct
20 Correct 7 ms 34396 KB Output is correct
21 Correct 7 ms 34392 KB Output is correct
22 Correct 8 ms 34424 KB Output is correct
23 Correct 8 ms 34236 KB Output is correct
24 Correct 8 ms 34392 KB Output is correct
25 Correct 8 ms 34396 KB Output is correct
26 Correct 8 ms 34396 KB Output is correct
27 Correct 7 ms 34396 KB Output is correct
28 Correct 7 ms 34460 KB Output is correct
29 Correct 7 ms 34396 KB Output is correct
30 Correct 7 ms 34396 KB Output is correct
31 Correct 7 ms 34248 KB Output is correct
32 Correct 8 ms 34392 KB Output is correct
33 Correct 8 ms 34648 KB Output is correct
34 Correct 7 ms 34396 KB Output is correct
35 Correct 13 ms 37980 KB Output is correct
36 Correct 7 ms 34512 KB Output is correct
37 Correct 15 ms 38236 KB Output is correct
38 Correct 12 ms 37080 KB Output is correct
39 Correct 81 ms 56924 KB Output is correct
40 Correct 76 ms 56912 KB Output is correct
41 Correct 32 ms 50396 KB Output is correct
42 Correct 76 ms 56876 KB Output is correct
43 Correct 70 ms 60752 KB Output is correct
44 Correct 30 ms 50528 KB Output is correct