oj.uz

Submission #999816

# Submission time Handle Problem Language Result Execution time Memory
999816 2024-06-16T07:15:48 Z vjudge1 Awesome Arrowland Adventure (eJOI19_adventure) C++17
100 / 100
 125 ms 30896 KB 
#pragma GCC optimize("-O3")
#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
#define ll long long
#define ld long double
#define vl vector<ll>
#define vi vector<int>
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define f first
#define s second
#define pii pair<int, int>
#define pll pair<ll, ll>
#define pb push_back
#define p_b pop_back
using namespace std;
using namespace __gnu_pbds;
typedef tree<ll, null_type, less_equal<ll>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
const ll sz = 505;
ll dist[sz][sz], vis[sz][sz], n, m, i, j;
char grid[sz][sz];
void f()
{
    for(i = 1; i < sz; i++)
    {
        for(j = 1; j < sz; j++)
            dist[i][j] = 1e15;
    }
    dist[i][j] = 0;
    priority_queue<pair<ll, pll>>pq;
    pq.push({0, {1, 1}});
    while(!pq.empty())
    {
        pll node = pq.top().s;
        ll cst = pq.top().f;
        pq.pop();
        if(vis[node.f][node.s])
            continue;
        dist[node.f][node.s] = -cst;
        vis[node.f][node.s] = 1;
        //cout << node.f << ' ' << node.s << "\n";
        if(grid[node.f][node.s] == 'E')
        {
            if(node.s - 1 >= 1)
                pq.push({-(dist[node.f][node.s]+2), {node.f, node.s-1}});
            if(node.s + 1 <= m)
                pq.push({-dist[node.f][node.s], {node.f, node.s+1}});
            if(node.f - 1 >= 1)
                pq.push({-(dist[node.f][node.s]+3), {node.f-1, node.s}});
            if(node.f + 1 <= n)
                pq.push({-(dist[node.f][node.s]+1), {node.f+1, node.s}});
        }
        else    if(grid[node.f][node.s] == 'S')
        {
            if(node.s - 1 >= 1)
                pq.push({-(dist[node.f][node.s]+1), {node.f, node.s-1}});
            if(node.s + 1 <= m)
                pq.push({-(dist[node.f][node.s]+3), {node.f, node.s+1}});
            if(node.f - 1 >= 1)
                pq.push({-(dist[node.f][node.s]+2), {node.f-1, node.s}});
            if(node.f + 1 <= n)
                pq.push({-dist[node.f][node.s], {node.f+1, node.s}});
        }
        else    if(grid[node.f][node.s] == 'W')
        {
            if(node.s - 1 >= 1)
                pq.push({-dist[node.f][node.s], {node.f, node.s-1}});
            if(node.s + 1 <= m)
                pq.push({-(dist[node.f][node.s]+2), {node.f, node.s+1}});
            if(node.f - 1 >= 1)
                pq.push({-(dist[node.f][node.s]+1), {node.f-1, node.s}});
            if(node.f + 1 <= n)
                pq.push({-(dist[node.f][node.s]+3), {node.f+1, node.s}});
        }
        else    if(grid[node.f][node.s] == 'N')
        {
            if(node.s - 1 >= 1)
                pq.push({-(dist[node.f][node.s]+3), {node.f, node.s-1}});
            if(node.s + 1 <= m)
                pq.push({-(dist[node.f][node.s]+1), {node.f, node.s+1}});
            if(node.f - 1 >= 1)
                pq.push({-dist[node.f][node.s], {node.f-1, node.s}});
            if(node.f + 1 <= n)
                pq.push({-(dist[node.f][node.s]+2), {node.f+1, node.s}});
        }
    }
}
void solve()
{
    cin >> n >> m;
    for(i = 1; i <= n; i++)
    {
        string s;
        cin >> s;
        for(j = 1; j <= m; j++)
            grid[i][j] = s[j-1];
    }
    f();
    if(dist[n][m] == 1e15)
        cout << "-1\n";
    else
        cout << dist[n][m] << "\n";
}
int main()
{
    //ios_base::sync_with_stdio(0);
    //cin.tie(0);
    //cout.tie(0);
    ll tests = 1;
    //cin >> tests;
    while(tests--)
    {
        solve();
    }
}

Compilation message

adventure.cpp: In function 'void first()':
adventure.cpp:31:11: warning: array subscript 505 is above array bounds of 'long long int [505][505]' [-Warray-bounds]
   31 |     dist[i][j] = 0;
      |     ~~~~~~^
adventure.cpp:22:4: note: while referencing 'dist'
   22 | ll dist[sz][sz], vis[sz][sz], n, m, i, j;
      |    ^~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4696 KB Output is correct
2 Correct 1 ms 4440 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 2 ms 4440 KB Output is correct
8 Correct 1 ms 4440 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 2 ms 4444 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4696 KB Output is correct
2 Correct 1 ms 4440 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 2 ms 4440 KB Output is correct
8 Correct 1 ms 4440 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 2 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4440 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4440 KB Output is correct
19 Correct 1 ms 4696 KB Output is correct
20 Correct 2 ms 4444 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct

Subtask #5
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4696 KB Output is correct
2 Correct 1 ms 4440 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 2 ms 4440 KB Output is correct
8 Correct 1 ms 4440 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 2 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4440 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4440 KB Output is correct
19 Correct 1 ms 4696 KB Output is correct
20 Correct 2 ms 4444 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 1 ms 4444 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4440 KB Output is correct
26 Correct 1 ms 4444 KB Output is correct
27 Correct 1 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 1 ms 4444 KB Output is correct
31 Correct 1 ms 4444 KB Output is correct
32 Correct 1 ms 4444 KB Output is correct
33 Correct 1 ms 4444 KB Output is correct
34 Correct 1 ms 4444 KB Output is correct
35 Correct 10 ms 4444 KB Output is correct
36 Correct 1 ms 4444 KB Output is correct
37 Correct 12 ms 4616 KB Output is correct
38 Correct 3 ms 4440 KB Output is correct
39 Correct 100 ms 5208 KB Output is correct
40 Correct 96 ms 5056 KB Output is correct
41 Correct 6 ms 4696 KB Output is correct
42 Correct 97 ms 4956 KB Output is correct
43 Correct 125 ms 30896 KB Output is correct
44 Correct 5 ms 4700 KB Output is correct