#include <bits/stdc++.h>
struct QEntry
{
int building;
int doge;
int cost;
};
bool visited[30000][30000];
int main()
{
int numBuildings, numDoges;
std::cin >> numBuildings;
std::cin >> numDoges;
std::vector<std::vector<int>> dogesInBuildings(numBuildings);
std::vector<int> dogePositions(numDoges);
std::vector<int> dogePowers(numDoges);
for (int i = 0; i < numDoges; i++)
{
std::cin >> dogePositions[i];
std::cin >> dogePowers[i];
dogesInBuildings[dogePositions[i]].push_back(i);
}
std::deque<QEntry> q;
q.push_back(QEntry { dogePositions[0], 0, 0 });
while (!q.empty())
{
QEntry entry = q.front();
q.pop_front();
if (visited[entry.building][entry.doge])
continue;
if (entry.doge == 1)
{
std::cout << entry.cost << std::endl;
return 0;
}
visited[entry.building][entry.doge] = true;
for (int d : dogesInBuildings[entry.building])
{
if (visited[entry.building][d])
continue;
q.push_front(QEntry { entry.building, d, entry.cost });
}
int pBuilding = entry.building - dogePowers[entry.doge];
if (pBuilding >= 0 && !visited[pBuilding][entry.doge])
{
q.push_back(QEntry { pBuilding, entry.doge, entry.cost + 1 });
}
int nBuilding = entry.building + dogePowers[entry.doge];
if (nBuilding < numBuildings && !visited[nBuilding][entry.doge])
{
q.push_back(QEntry { nBuilding, entry.doge, entry.cost + 1 });
}
}
std::cout << "-1" << std::endl;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
452 KB |
Output is correct |
3 |
Correct |
2 ms |
588 KB |
Output is correct |
4 |
Correct |
2 ms |
588 KB |
Output is correct |
5 |
Correct |
2 ms |
588 KB |
Output is correct |
6 |
Correct |
3 ms |
588 KB |
Output is correct |
7 |
Correct |
3 ms |
588 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
588 KB |
Output is correct |
2 |
Correct |
2 ms |
588 KB |
Output is correct |
3 |
Correct |
2 ms |
588 KB |
Output is correct |
4 |
Correct |
2 ms |
588 KB |
Output is correct |
5 |
Correct |
2 ms |
588 KB |
Output is correct |
6 |
Correct |
2 ms |
588 KB |
Output is correct |
7 |
Correct |
3 ms |
596 KB |
Output is correct |
8 |
Correct |
3 ms |
596 KB |
Output is correct |
9 |
Correct |
4 ms |
596 KB |
Output is correct |
10 |
Correct |
4 ms |
724 KB |
Output is correct |
11 |
Correct |
6 ms |
760 KB |
Output is correct |
12 |
Correct |
42 ms |
25076 KB |
Output is correct |
13 |
Correct |
59 ms |
25076 KB |
Output is correct |
14 |
Correct |
7 ms |
25076 KB |
Output is correct |
15 |
Correct |
7 ms |
25076 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
25076 KB |
Output is correct |
2 |
Correct |
3 ms |
25076 KB |
Output is correct |
3 |
Correct |
3 ms |
25076 KB |
Output is correct |
4 |
Correct |
2 ms |
25076 KB |
Output is correct |
5 |
Correct |
3 ms |
25076 KB |
Output is correct |
6 |
Correct |
2 ms |
25076 KB |
Output is correct |
7 |
Correct |
2 ms |
25076 KB |
Output is correct |
8 |
Correct |
2 ms |
25076 KB |
Output is correct |
9 |
Correct |
3 ms |
25076 KB |
Output is correct |
10 |
Correct |
4 ms |
25076 KB |
Output is correct |
11 |
Correct |
5 ms |
25076 KB |
Output is correct |
12 |
Correct |
40 ms |
25080 KB |
Output is correct |
13 |
Correct |
42 ms |
25080 KB |
Output is correct |
14 |
Correct |
8 ms |
25080 KB |
Output is correct |
15 |
Correct |
5 ms |
25080 KB |
Output is correct |
16 |
Correct |
4 ms |
25080 KB |
Output is correct |
17 |
Correct |
9 ms |
25080 KB |
Output is correct |
18 |
Correct |
4 ms |
25080 KB |
Output is correct |
19 |
Correct |
5 ms |
25080 KB |
Output is correct |
20 |
Correct |
194 ms |
25080 KB |
Output is correct |
21 |
Correct |
5 ms |
25080 KB |
Output is correct |
22 |
Correct |
5 ms |
25080 KB |
Output is correct |
23 |
Correct |
16 ms |
25080 KB |
Output is correct |
24 |
Correct |
21 ms |
25080 KB |
Output is correct |
25 |
Correct |
10 ms |
25080 KB |
Output is correct |
26 |
Correct |
15 ms |
25080 KB |
Output is correct |
27 |
Correct |
57 ms |
29528 KB |
Output is correct |
28 |
Correct |
28 ms |
29528 KB |
Output is correct |
29 |
Correct |
18 ms |
29528 KB |
Output is correct |
30 |
Correct |
14 ms |
29528 KB |
Output is correct |
31 |
Correct |
17 ms |
29528 KB |
Output is correct |
32 |
Correct |
17 ms |
29528 KB |
Output is correct |
33 |
Correct |
27 ms |
29528 KB |
Output is correct |
34 |
Correct |
21 ms |
29528 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
29528 KB |
Output is correct |
2 |
Correct |
3 ms |
29528 KB |
Output is correct |
3 |
Correct |
2 ms |
29528 KB |
Output is correct |
4 |
Correct |
3 ms |
29528 KB |
Output is correct |
5 |
Correct |
3 ms |
29528 KB |
Output is correct |
6 |
Correct |
3 ms |
29528 KB |
Output is correct |
7 |
Correct |
3 ms |
29528 KB |
Output is correct |
8 |
Correct |
3 ms |
29528 KB |
Output is correct |
9 |
Correct |
2 ms |
29528 KB |
Output is correct |
10 |
Correct |
4 ms |
29528 KB |
Output is correct |
11 |
Correct |
3 ms |
29528 KB |
Output is correct |
12 |
Correct |
39 ms |
29528 KB |
Output is correct |
13 |
Correct |
44 ms |
29528 KB |
Output is correct |
14 |
Correct |
5 ms |
29528 KB |
Output is correct |
15 |
Correct |
5 ms |
29528 KB |
Output is correct |
16 |
Correct |
5 ms |
29528 KB |
Output is correct |
17 |
Correct |
10 ms |
29528 KB |
Output is correct |
18 |
Correct |
4 ms |
29528 KB |
Output is correct |
19 |
Correct |
3 ms |
29528 KB |
Output is correct |
20 |
Correct |
182 ms |
29528 KB |
Output is correct |
21 |
Correct |
4 ms |
29528 KB |
Output is correct |
22 |
Correct |
4 ms |
29528 KB |
Output is correct |
23 |
Correct |
16 ms |
29528 KB |
Output is correct |
24 |
Correct |
19 ms |
29528 KB |
Output is correct |
25 |
Correct |
7 ms |
29528 KB |
Output is correct |
26 |
Correct |
15 ms |
29528 KB |
Output is correct |
27 |
Correct |
46 ms |
29948 KB |
Output is correct |
28 |
Correct |
22 ms |
29948 KB |
Output is correct |
29 |
Correct |
18 ms |
29948 KB |
Output is correct |
30 |
Correct |
15 ms |
29948 KB |
Output is correct |
31 |
Correct |
17 ms |
29948 KB |
Output is correct |
32 |
Correct |
15 ms |
29948 KB |
Output is correct |
33 |
Correct |
29 ms |
29948 KB |
Output is correct |
34 |
Correct |
27 ms |
29948 KB |
Output is correct |
35 |
Correct |
104 ms |
40528 KB |
Output is correct |
36 |
Correct |
10 ms |
40528 KB |
Output is correct |
37 |
Correct |
61 ms |
40528 KB |
Output is correct |
38 |
Correct |
70 ms |
40528 KB |
Output is correct |
39 |
Correct |
35 ms |
40528 KB |
Output is correct |
40 |
Correct |
38 ms |
40528 KB |
Output is correct |
41 |
Correct |
62 ms |
40528 KB |
Output is correct |
42 |
Correct |
39 ms |
40528 KB |
Output is correct |
43 |
Execution timed out |
1064 ms |
263168 KB |
Time limit exceeded |
44 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
4 ms |
263168 KB |
Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience. |
2 |
Halted |
0 ms |
0 KB |
- |