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Submission #238122

# Submission time Handle Problem Language Result Execution time Memory
238122 2020-06-10T01:46:04 Z HellAngel Jakarta Skyscrapers (APIO15_skyscraper) C++14
57 / 100
 1000 ms 3960 KB 
#include <bits/stdc++.h>
using namespace std;

const int maxn = 50007;

int n, m, a[maxn], start[maxn], len[maxn], dist[maxn];
vector<int> pos[maxn];

priority_queue<pair<int, int>, vector<pair<int, int>>, greater<pair<int, int>>> pq;

bool Inside(int x)
{
    return (x >= 0 && x < n);
}

int32_t main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    if(fopen("test.inp", "r")) freopen("test.inp", "r", stdin), freopen("test.out", "w", stdout);
    cin >> n >> m;
    fill_n(dist, n, 1e9);
    for(int i = 1; i <= m; i++)
    {
        cin >> start[i] >> len[i];
        pos[start[i]].push_back(i);
    }
    if(m == 1)
    {
        cout << -1;
        return 0;
    }
    dist[start[1]] = 0;
    pq.emplace(0, start[1]);
    while(pq.size())
    {
        pair<int, int> p = pq.top();
        pq.pop();
        if(p.first != dist[p.second]) continue;
        int u = p.second;
        if(u == start[2])
        {
            cout << p.first;
            exit(0);
        }
        for(auto j: pos[u])
        {
            for(int i = 1;;i++)
            {
                int nxt = u + i * len[j];
                bool ok = 0;
                ok |= Inside(nxt);
                if(Inside(nxt) && dist[nxt] > dist[u] + i)
                {
                    dist[nxt] = dist[u] + i;
                    pq.emplace(dist[nxt], nxt);
                }
                nxt = u - i * len[j];
                ok |= Inside(nxt);
                if(Inside(nxt) && dist[nxt] > dist[u] + i)
                {
                    dist[nxt] = dist[u] + i;
                    pq.emplace(dist[nxt], nxt);
                }
                if(!ok) break;
            }
        }
    }
    cout << -1;
}

Compilation message

skyscraper.cpp: In function 'int32_t main()':
skyscraper.cpp:20:63: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     if(fopen("test.inp", "r")) freopen("test.inp", "r", stdin), freopen("test.out", "w", stdout);
                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
skyscraper.cpp:20:63: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1536 KB Output is correct
2 Correct 5 ms 1536 KB Output is correct
3 Correct 5 ms 1536 KB Output is correct
4 Correct 5 ms 1536 KB Output is correct
5 Correct 5 ms 1536 KB Output is correct
6 Correct 5 ms 1536 KB Output is correct
7 Correct 6 ms 1536 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1536 KB Output is correct
2 Correct 5 ms 1536 KB Output is correct
3 Correct 5 ms 1464 KB Output is correct
4 Correct 5 ms 1536 KB Output is correct
5 Correct 5 ms 1536 KB Output is correct
6 Correct 5 ms 1536 KB Output is correct
7 Correct 5 ms 1536 KB Output is correct
8 Correct 6 ms 1536 KB Output is correct
9 Correct 6 ms 1536 KB Output is correct
10 Correct 5 ms 1536 KB Output is correct
11 Correct 6 ms 1536 KB Output is correct
12 Correct 6 ms 1536 KB Output is correct
13 Correct 6 ms 1536 KB Output is correct
14 Correct 6 ms 1536 KB Output is correct
15 Correct 6 ms 1664 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1536 KB Output is correct
2 Correct 5 ms 1536 KB Output is correct
3 Correct 5 ms 1536 KB Output is correct
4 Correct 5 ms 1536 KB Output is correct
5 Correct 5 ms 1536 KB Output is correct
6 Correct 5 ms 1536 KB Output is correct
7 Correct 5 ms 1536 KB Output is correct
8 Correct 5 ms 1536 KB Output is correct
9 Correct 6 ms 1536 KB Output is correct
10 Correct 5 ms 1536 KB Output is correct
11 Correct 5 ms 1536 KB Output is correct
12 Correct 5 ms 1536 KB Output is correct
13 Correct 6 ms 1536 KB Output is correct
14 Correct 6 ms 1536 KB Output is correct
15 Correct 5 ms 1536 KB Output is correct
16 Correct 6 ms 1536 KB Output is correct
17 Correct 6 ms 1664 KB Output is correct
18 Correct 7 ms 1536 KB Output is correct
19 Correct 6 ms 1536 KB Output is correct
20 Correct 13 ms 1664 KB Output is correct
21 Correct 5 ms 1536 KB Output is correct
22 Correct 5 ms 1536 KB Output is correct
23 Correct 6 ms 1664 KB Output is correct
24 Correct 6 ms 1664 KB Output is correct
25 Correct 6 ms 1664 KB Output is correct
26 Correct 6 ms 1536 KB Output is correct
27 Correct 6 ms 1536 KB Output is correct
28 Correct 6 ms 1664 KB Output is correct
29 Correct 7 ms 1792 KB Output is correct
30 Correct 6 ms 1664 KB Output is correct
31 Correct 7 ms 1664 KB Output is correct
32 Correct 6 ms 1664 KB Output is correct
33 Correct 8 ms 1792 KB Output is correct
34 Correct 8 ms 1792 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1536 KB Output is correct
2 Correct 6 ms 1536 KB Output is correct
3 Correct 5 ms 1536 KB Output is correct
4 Correct 5 ms 1664 KB Output is correct
5 Correct 5 ms 1536 KB Output is correct
6 Correct 5 ms 1536 KB Output is correct
7 Correct 5 ms 1536 KB Output is correct
8 Correct 5 ms 1536 KB Output is correct
9 Correct 5 ms 1536 KB Output is correct
10 Correct 6 ms 1536 KB Output is correct
11 Correct 6 ms 1536 KB Output is correct
12 Correct 5 ms 1536 KB Output is correct
13 Correct 6 ms 1536 KB Output is correct
14 Correct 6 ms 1536 KB Output is correct
15 Correct 5 ms 1536 KB Output is correct
16 Correct 5 ms 1536 KB Output is correct
17 Correct 6 ms 1664 KB Output is correct
18 Correct 5 ms 1536 KB Output is correct
19 Correct 5 ms 1536 KB Output is correct
20 Correct 13 ms 1664 KB Output is correct
21 Correct 5 ms 1536 KB Output is correct
22 Correct 5 ms 1536 KB Output is correct
23 Correct 6 ms 1536 KB Output is correct
24 Correct 6 ms 1664 KB Output is correct
25 Correct 6 ms 1664 KB Output is correct
26 Correct 6 ms 1536 KB Output is correct
27 Correct 6 ms 1536 KB Output is correct
28 Correct 6 ms 1664 KB Output is correct
29 Correct 8 ms 1792 KB Output is correct
30 Correct 6 ms 1664 KB Output is correct
31 Correct 6 ms 1664 KB Output is correct
32 Correct 6 ms 1664 KB Output is correct
33 Correct 8 ms 1792 KB Output is correct
34 Correct 7 ms 1792 KB Output is correct
35 Correct 12 ms 2176 KB Output is correct
36 Correct 7 ms 1792 KB Output is correct
37 Correct 10 ms 2176 KB Output is correct
38 Correct 13 ms 2432 KB Output is correct
39 Correct 12 ms 2304 KB Output is correct
40 Correct 12 ms 2432 KB Output is correct
41 Correct 12 ms 2432 KB Output is correct
42 Correct 10 ms 2176 KB Output is correct
43 Correct 9 ms 2176 KB Output is correct
44 Correct 138 ms 2176 KB Output is correct
45 Correct 14 ms 2304 KB Output is correct
46 Correct 13 ms 2304 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1536 KB Output is correct
2 Correct 5 ms 1536 KB Output is correct
3 Correct 5 ms 1536 KB Output is correct
4 Correct 5 ms 1536 KB Output is correct
5 Correct 5 ms 1536 KB Output is correct
6 Correct 5 ms 1536 KB Output is correct
7 Correct 5 ms 1536 KB Output is correct
8 Correct 5 ms 1536 KB Output is correct
9 Correct 5 ms 1536 KB Output is correct
10 Correct 5 ms 1536 KB Output is correct
11 Correct 6 ms 1536 KB Output is correct
12 Correct 6 ms 1536 KB Output is correct
13 Correct 6 ms 1536 KB Output is correct
14 Correct 5 ms 1536 KB Output is correct
15 Correct 5 ms 1536 KB Output is correct
16 Correct 5 ms 1536 KB Output is correct
17 Correct 6 ms 1664 KB Output is correct
18 Correct 6 ms 1536 KB Output is correct
19 Correct 7 ms 1536 KB Output is correct
20 Correct 13 ms 1664 KB Output is correct
21 Correct 7 ms 1536 KB Output is correct
22 Correct 5 ms 1536 KB Output is correct
23 Correct 6 ms 1664 KB Output is correct
24 Correct 6 ms 1664 KB Output is correct
25 Correct 6 ms 1664 KB Output is correct
26 Correct 6 ms 1536 KB Output is correct
27 Correct 7 ms 1664 KB Output is correct
28 Correct 7 ms 1664 KB Output is correct
29 Correct 7 ms 1792 KB Output is correct
30 Correct 6 ms 1664 KB Output is correct
31 Correct 6 ms 1664 KB Output is correct
32 Correct 6 ms 1664 KB Output is correct
33 Correct 8 ms 1792 KB Output is correct
34 Correct 7 ms 1792 KB Output is correct
35 Correct 11 ms 2176 KB Output is correct
36 Correct 7 ms 1664 KB Output is correct
37 Correct 10 ms 2176 KB Output is correct
38 Correct 14 ms 2432 KB Output is correct
39 Correct 12 ms 2304 KB Output is correct
40 Correct 13 ms 2304 KB Output is correct
41 Correct 12 ms 2432 KB Output is correct
42 Correct 10 ms 2176 KB Output is correct
43 Correct 10 ms 2176 KB Output is correct
44 Correct 145 ms 2296 KB Output is correct
45 Correct 15 ms 2376 KB Output is correct
46 Correct 12 ms 2304 KB Output is correct
47 Correct 15 ms 2940 KB Output is correct
48 Correct 12 ms 2560 KB Output is correct
49 Correct 12 ms 2432 KB Output is correct
50 Correct 12 ms 2304 KB Output is correct
51 Correct 22 ms 3960 KB Output is correct
52 Correct 26 ms 3452 KB Output is correct
53 Correct 16 ms 3072 KB Output is correct
54 Correct 7 ms 1920 KB Output is correct
55 Correct 7 ms 1920 KB Output is correct
56 Execution timed out 1083 ms 3456 KB Time limit exceeded
57 Halted 0 ms 0 KB -