from collections import deque, defaultdict
def min_jumps_to_pass_news(N, M, doges):
# Graph to hold connections (skyscrapers reachable by jumps)
graph = defaultdict(list)
for i, (b, p) in enumerate(doges):
graph[b].append((b + p, i))
graph[b].append((b - p, i))
# Initialize BFS
queue = deque()
visited = [False] * N
min_jumps = [float('inf')] * N
doge_locations = [b for b, _ in doges]
# Start with doge 0
queue.append((doge_locations[0], 0)) # (current_skyscraper, jumps)
visited[doge_locations[0]] = True
min_jumps[doge_locations[0]] = 0
while queue:
current, jumps = queue.popleft()
# Check if we reached skyscraper with doge 1
if visited[1]:
return min_jumps[1]
for next_skyscraper, doge_index in graph[current]:
if 0 <= next_skyscraper < N and not visited[next_skyscraper]:
visited[next_skyscraper] = True
min_jumps[next_skyscraper] = jumps + 1
queue.append((next_skyscraper, jumps + 1))
# Pass the news to other doges in the same skyscraper
for i in range(M):
if doge_locations[i] == next_skyscraper:
queue.append((next_skyscraper, jumps + 1))
visited[next_skyscraper] = True
return -1 if min_jumps[1] == float('inf') else min_jumps[1]
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
11 ms |
3164 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
12 ms |
3320 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
10 ms |
3164 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
11 ms |
3244 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
10 ms |
3164 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |