oj.uz

Submission #286486

# Submission time Handle Problem Language Result Execution time Memory
286486 2020-08-30T13:13:02 Z wildturtle Awesome Arrowland Adventure (eJOI19_adventure) C++14
100 / 100
 152 ms 38248 KB 
#include<bits/stdc++.h>
using namespace std;
long long a,b,c,d,i,e,f,g,n,m,k,l,A[500005];
string s[505];
vector < pair < long long , long long > > v[500005];
priority_queue< pair < long long , long long > > pq;
int main() {
    cin>>n>>m;
    for(long long i=1;i<=n;i++) {
        cin>>s[i];
        
        s[i]='#'+s[i];
      // cout<<s[i]<<endl;
    }
    //cout<<s[2][1]<<endl;
    for(long long i=1;i<=n;i++) {
        for(long long j=1;j<=m;j++) {
            if(s[i][j]=='X') continue;
            a=0;
            if(i-1>0) {
                if(s[i][j]=='N') a=0;
                else if(s[i][j]=='E') a=3;
                else if(s[i][j]=='W') a=1;
                else a=2;
                v[(i-1)*m+j].push_back({(i-2)*m+j,a});
            }
            a=0;
            if(i+1<=n) {
                if(s[i][j]=='S') a=0;
                else if(s[i][j]=='W') a=3;
                else if(s[i][j]=='E') a=1;
                else a=2;
                v[(i-1)*m+j].push_back({i*m+j,a});                
            }
            a=0;
            if(j-1>0) {
                if(s[i][j]=='W') a=0;
                else if(s[i][j]=='N') a=3;
                else if(s[i][j]=='S') a=1;
                else if(s[i][j]=='E') a=2;
                v[(i-1)*m+j].push_back({(i-1)*m+j-1,a});
            }
            a=0;
            if(j+1<=m) {
                if(s[i][j]=='E') a=0;
                else if(s[i][j]=='S') a=3;
                else if(s[i][j]=='N') a=1;
                else if(s[i][j]=='W') a=2;
                //if((i-1)*m+j==4) cout<<a<<" "<<s[i][j]<<" "<<i<<" "<<j<<" "<<s[i]<<endl;
                v[(i-1)*m+j].push_back({(i-1)*m+j+1,a});                
            }
        }
    }
    for(long long i=1;i<=n*m;i++)
        A[i]=100000000001ll;
    /*for(long long i=0;i<v[4].size();i++)
        cout<<v[4][i].first<<" "<<v[4][i].second<<endl;
        cout<<endl;*/
    A[1]=0;
    pq.push({0,1});
    while (pq.size()>0) {
        a=-(pq.top().first);
        b=pq.top().second;
        pq.pop();
        for(long long i=0;i<v[b].size();i++) {
            c=v[b][i].first; d=v[b][i].second;
            if(A[c]>A[b]+d) { A[c]=A[b]+d; pq.push({-(A[c]), c}); }
        }
    }
    /*for(long long i=1;i<=n*m;i++) {
        cout<<A[i]<<" ";
        if(i%m==0) cout<<endl;
    }*/
    if(A[n*m]==100000000001) cout<<-1;
    else cout<<A[n*m];
}

Compilation message

adventure.cpp: In function 'int main()':
adventure.cpp:65:28: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |         for(long long i=0;i<v[b].size();i++) {
      |                           ~^~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 12032 KB Output is correct
2 Correct 9 ms 12160 KB Output is correct
3 Correct 9 ms 12032 KB Output is correct
4 Correct 8 ms 12160 KB Output is correct
5 Correct 8 ms 12160 KB Output is correct
6 Correct 8 ms 12032 KB Output is correct
7 Correct 8 ms 12032 KB Output is correct
8 Correct 8 ms 12032 KB Output is correct
9 Correct 8 ms 12160 KB Output is correct
10 Correct 8 ms 12032 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 12032 KB Output is correct
2 Correct 9 ms 12160 KB Output is correct
3 Correct 9 ms 12032 KB Output is correct
4 Correct 8 ms 12160 KB Output is correct
5 Correct 8 ms 12160 KB Output is correct
6 Correct 8 ms 12032 KB Output is correct
7 Correct 8 ms 12032 KB Output is correct
8 Correct 8 ms 12032 KB Output is correct
9 Correct 8 ms 12160 KB Output is correct
10 Correct 8 ms 12032 KB Output is correct
11 Correct 8 ms 12032 KB Output is correct
12 Correct 8 ms 12032 KB Output is correct
13 Correct 8 ms 12160 KB Output is correct
14 Correct 8 ms 12032 KB Output is correct
15 Correct 8 ms 12032 KB Output is correct
16 Correct 8 ms 12160 KB Output is correct
17 Correct 8 ms 12160 KB Output is correct
18 Correct 8 ms 12032 KB Output is correct
19 Correct 8 ms 12032 KB Output is correct
20 Correct 8 ms 12160 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 12032 KB Output is correct
2 Correct 7 ms 12032 KB Output is correct
3 Correct 8 ms 12032 KB Output is correct
4 Correct 8 ms 12032 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 12160 KB Output is correct
2 Correct 8 ms 12032 KB Output is correct
3 Correct 8 ms 12160 KB Output is correct
4 Correct 8 ms 12160 KB Output is correct
5 Correct 8 ms 12192 KB Output is correct
6 Correct 8 ms 12160 KB Output is correct
7 Correct 8 ms 12064 KB Output is correct
8 Correct 8 ms 12032 KB Output is correct
9 Correct 8 ms 12032 KB Output is correct
10 Correct 8 ms 12032 KB Output is correct

Subtask #5
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 12032 KB Output is correct
2 Correct 9 ms 12160 KB Output is correct
3 Correct 9 ms 12032 KB Output is correct
4 Correct 8 ms 12160 KB Output is correct
5 Correct 8 ms 12160 KB Output is correct
6 Correct 8 ms 12032 KB Output is correct
7 Correct 8 ms 12032 KB Output is correct
8 Correct 8 ms 12032 KB Output is correct
9 Correct 8 ms 12160 KB Output is correct
10 Correct 8 ms 12032 KB Output is correct
11 Correct 8 ms 12032 KB Output is correct
12 Correct 8 ms 12032 KB Output is correct
13 Correct 8 ms 12160 KB Output is correct
14 Correct 8 ms 12032 KB Output is correct
15 Correct 8 ms 12032 KB Output is correct
16 Correct 8 ms 12160 KB Output is correct
17 Correct 8 ms 12160 KB Output is correct
18 Correct 8 ms 12032 KB Output is correct
19 Correct 8 ms 12032 KB Output is correct
20 Correct 8 ms 12160 KB Output is correct
21 Correct 8 ms 12032 KB Output is correct
22 Correct 7 ms 12032 KB Output is correct
23 Correct 8 ms 12032 KB Output is correct
24 Correct 8 ms 12032 KB Output is correct
25 Correct 8 ms 12160 KB Output is correct
26 Correct 8 ms 12032 KB Output is correct
27 Correct 8 ms 12160 KB Output is correct
28 Correct 8 ms 12160 KB Output is correct
29 Correct 8 ms 12192 KB Output is correct
30 Correct 8 ms 12160 KB Output is correct
31 Correct 8 ms 12064 KB Output is correct
32 Correct 8 ms 12032 KB Output is correct
33 Correct 8 ms 12032 KB Output is correct
34 Correct 8 ms 12032 KB Output is correct
35 Correct 16 ms 13696 KB Output is correct
36 Correct 8 ms 12288 KB Output is correct
37 Correct 18 ms 14080 KB Output is correct
38 Correct 17 ms 15104 KB Output is correct
39 Correct 110 ms 30328 KB Output is correct
40 Correct 109 ms 30200 KB Output is correct
41 Correct 65 ms 30116 KB Output is correct
42 Correct 110 ms 30200 KB Output is correct
43 Correct 152 ms 38248 KB Output is correct
44 Correct 62 ms 30200 KB Output is correct