oj.uz

Submission #45861

# Submission time Handle Problem Language Result Execution time Memory
45861 2018-04-16T09:31:51 Z antimirage Jakarta Skyscrapers (APIO15_skyscraper) C++17
57 / 100
 50 ms 17276 KB 
#include <bits/stdc++.h>

#define fr first
#define sc second
#define mk make_pair
#define pb push_back
#define OK puts("OK");
#define sz(s) (int)s.size()
#define all(s) s.begin(), s.end()

using namespace std;

const int N = 2005;

int n, m, u[N][N], pos[30005], pw[30005], ans = 1e9 + 7;

vector <int> vec[N];

queue <pair <int, int> > q;

main()
{
    cin >> n >> m;
    for (int i = 0; i < m; i++)
    {
        scanf("%d%d", &pos[i], &pw[i]);
        vec[pos[i]].pb(pw[i]);
    }
    for (auto to : vec[ pos[0] ])
    {
        q.push( mk(pos[0], to) );
        u[ pos[0] ][to] = 1;
    }
    vec[ pos[0] ].clear();

    while (!q.empty() )
    {
        int v = q.front().fr, cur_pow = q.front().sc;
        q.pop();

        for (auto it : vec[v])
        {
            if (!u[v][it])
            {
                u[v][it] = u[v][cur_pow];
                q.push( mk(v, it) );
            }
        }
        vec[v].clear();

        if ( v - cur_pow >= 0 && !u[v - cur_pow][cur_pow] )
        {
            u[v - cur_pow][cur_pow] = u[v][cur_pow] + 1;
            q.push( mk(v - cur_pow, cur_pow) );
        }
        if ( v + cur_pow < n && !u[v + cur_pow][cur_pow] )
        {
            u[v + cur_pow][cur_pow] = u[v][cur_pow] + 1;
            q.push( mk(v + cur_pow, cur_pow) );
        }
    }
    for (int i = 0; i < m; i++)
    {
        if (u[ pos[1] ][ pw[i] ])
            ans = min(ans, u[ pos[1] ][ pw[i] ] - 1);
    }
    if (ans == 1e9 + 7) ans = -1;
    cout << ans << endl;
}
/**
5 3
0 2
1 1
4 1
**/

Compilation message

skyscraper.cpp:21:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^
skyscraper.cpp: In function 'int main()':
skyscraper.cpp:26:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d", &pos[i], &pw[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 536 KB Output is correct
4 Correct 2 ms 536 KB Output is correct
5 Correct 2 ms 536 KB Output is correct
6 Correct 2 ms 536 KB Output is correct
7 Correct 2 ms 740 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 740 KB Output is correct
2 Correct 2 ms 740 KB Output is correct
3 Correct 2 ms 740 KB Output is correct
4 Correct 2 ms 740 KB Output is correct
5 Correct 2 ms 740 KB Output is correct
6 Correct 2 ms 740 KB Output is correct
7 Correct 2 ms 740 KB Output is correct
8 Correct 2 ms 740 KB Output is correct
9 Correct 2 ms 824 KB Output is correct
10 Correct 2 ms 996 KB Output is correct
11 Correct 3 ms 1124 KB Output is correct
12 Correct 3 ms 1124 KB Output is correct
13 Correct 3 ms 1124 KB Output is correct
14 Correct 4 ms 1124 KB Output is correct
15 Correct 3 ms 1124 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1124 KB Output is correct
2 Correct 2 ms 1124 KB Output is correct
3 Correct 2 ms 1124 KB Output is correct
4 Correct 2 ms 1124 KB Output is correct
5 Correct 2 ms 1124 KB Output is correct
6 Correct 2 ms 1124 KB Output is correct
7 Correct 2 ms 1124 KB Output is correct
8 Correct 2 ms 1124 KB Output is correct
9 Correct 2 ms 1124 KB Output is correct
10 Correct 3 ms 1124 KB Output is correct
11 Correct 3 ms 1124 KB Output is correct
12 Correct 3 ms 1124 KB Output is correct
13 Correct 3 ms 1124 KB Output is correct
14 Correct 3 ms 1124 KB Output is correct
15 Correct 4 ms 1124 KB Output is correct
16 Correct 2 ms 1124 KB Output is correct
17 Correct 7 ms 4708 KB Output is correct
18 Correct 2 ms 4708 KB Output is correct
19 Correct 2 ms 4708 KB Output is correct
20 Correct 11 ms 8676 KB Output is correct
21 Correct 3 ms 8676 KB Output is correct
22 Correct 2 ms 8676 KB Output is correct
23 Correct 12 ms 9708 KB Output is correct
24 Correct 19 ms 13436 KB Output is correct
25 Correct 16 ms 14204 KB Output is correct
26 Correct 12 ms 14204 KB Output is correct
27 Correct 12 ms 14204 KB Output is correct
28 Correct 14 ms 14204 KB Output is correct
29 Correct 12 ms 14204 KB Output is correct
30 Correct 11 ms 14204 KB Output is correct
31 Correct 13 ms 14204 KB Output is correct
32 Correct 11 ms 14204 KB Output is correct
33 Correct 14 ms 14204 KB Output is correct
34 Correct 14 ms 14204 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 14204 KB Output is correct
2 Correct 2 ms 14204 KB Output is correct
3 Correct 2 ms 14204 KB Output is correct
4 Correct 2 ms 14204 KB Output is correct
5 Correct 2 ms 14204 KB Output is correct
6 Correct 2 ms 14204 KB Output is correct
7 Correct 2 ms 14204 KB Output is correct
8 Correct 2 ms 14204 KB Output is correct
9 Correct 2 ms 14204 KB Output is correct
10 Correct 3 ms 14204 KB Output is correct
11 Correct 3 ms 14204 KB Output is correct
12 Correct 3 ms 14204 KB Output is correct
13 Correct 3 ms 14204 KB Output is correct
14 Correct 3 ms 14204 KB Output is correct
15 Correct 3 ms 14204 KB Output is correct
16 Correct 2 ms 14204 KB Output is correct
17 Correct 7 ms 14204 KB Output is correct
18 Correct 2 ms 14204 KB Output is correct
19 Correct 2 ms 14204 KB Output is correct
20 Correct 11 ms 14204 KB Output is correct
21 Correct 2 ms 14204 KB Output is correct
22 Correct 2 ms 14204 KB Output is correct
23 Correct 12 ms 14204 KB Output is correct
24 Correct 16 ms 14204 KB Output is correct
25 Correct 17 ms 14204 KB Output is correct
26 Correct 11 ms 14204 KB Output is correct
27 Correct 11 ms 14204 KB Output is correct
28 Correct 14 ms 14204 KB Output is correct
29 Correct 12 ms 14204 KB Output is correct
30 Correct 11 ms 14204 KB Output is correct
31 Correct 12 ms 14204 KB Output is correct
32 Correct 11 ms 14204 KB Output is correct
33 Correct 14 ms 14204 KB Output is correct
34 Correct 14 ms 14204 KB Output is correct
35 Correct 25 ms 14204 KB Output is correct
36 Correct 12 ms 14204 KB Output is correct
37 Correct 32 ms 15612 KB Output is correct
38 Correct 35 ms 17020 KB Output is correct
39 Correct 36 ms 17020 KB Output is correct
40 Correct 35 ms 17020 KB Output is correct
41 Correct 36 ms 17024 KB Output is correct
42 Correct 16 ms 17024 KB Output is correct
43 Correct 18 ms 17024 KB Output is correct
44 Correct 16 ms 17024 KB Output is correct
45 Correct 35 ms 17024 KB Output is correct
46 Correct 33 ms 17024 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 17024 KB Output is correct
2 Correct 2 ms 17024 KB Output is correct
3 Correct 2 ms 17024 KB Output is correct
4 Correct 2 ms 17024 KB Output is correct
5 Correct 2 ms 17024 KB Output is correct
6 Correct 2 ms 17024 KB Output is correct
7 Correct 2 ms 17024 KB Output is correct
8 Correct 2 ms 17024 KB Output is correct
9 Correct 2 ms 17024 KB Output is correct
10 Correct 2 ms 17024 KB Output is correct
11 Correct 4 ms 17024 KB Output is correct
12 Correct 2 ms 17024 KB Output is correct
13 Correct 3 ms 17024 KB Output is correct
14 Correct 3 ms 17024 KB Output is correct
15 Correct 3 ms 17024 KB Output is correct
16 Correct 3 ms 17024 KB Output is correct
17 Correct 8 ms 17024 KB Output is correct
18 Correct 2 ms 17024 KB Output is correct
19 Correct 3 ms 17024 KB Output is correct
20 Correct 11 ms 17024 KB Output is correct
21 Correct 3 ms 17024 KB Output is correct
22 Correct 2 ms 17024 KB Output is correct
23 Correct 15 ms 17024 KB Output is correct
24 Correct 17 ms 17024 KB Output is correct
25 Correct 19 ms 17024 KB Output is correct
26 Correct 13 ms 17024 KB Output is correct
27 Correct 15 ms 17024 KB Output is correct
28 Correct 14 ms 17024 KB Output is correct
29 Correct 12 ms 17024 KB Output is correct
30 Correct 11 ms 17024 KB Output is correct
31 Correct 12 ms 17024 KB Output is correct
32 Correct 11 ms 17024 KB Output is correct
33 Correct 14 ms 17024 KB Output is correct
34 Correct 19 ms 17024 KB Output is correct
35 Correct 38 ms 17024 KB Output is correct
36 Correct 14 ms 17024 KB Output is correct
37 Correct 46 ms 17024 KB Output is correct
38 Correct 37 ms 17024 KB Output is correct
39 Correct 50 ms 17276 KB Output is correct
40 Correct 38 ms 17276 KB Output is correct
41 Correct 39 ms 17276 KB Output is correct
42 Correct 18 ms 17276 KB Output is correct
43 Correct 17 ms 17276 KB Output is correct
44 Correct 15 ms 17276 KB Output is correct
45 Correct 33 ms 17276 KB Output is correct
46 Correct 47 ms 17276 KB Output is correct
47 Runtime error 4 ms 17276 KB Execution killed with signal 11 (could be triggered by violating memory limits)
48 Halted 0 ms 0 KB -