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Range rover evoque
5 min
Range rover evoque com SEMANA COMEÇA MADRASTA VADIA NOVA.
Stainless steel 30 inch range hood gold gas
2
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58 Seg
From collections import deque def main(): n, m = [int(i) for i in input().split()] edges = [] for i in range(m): a, b, w = [int(i) for i in input().split()] edges.append((a 1, b 1, w)) d = [float('inf') for i in range(n)] d[0] = 0 for i in range(n 1): for e in edges: if d[e[1]] > d[e[0]] e[2]: d[e[1]] = d[e[0]] e[2] if d[n 1] == float('inf'): return 'IMPOSSIBLE' x = set() for a, b, w in edges: if d[a] != float('inf') and d[b] > d[a] w: x.add(b) q = deque(x) visited = [False] * n for v in x: visited[v] = True while q: v = q.popleft() for i in gr[v]: if not visited[i]: visited[i] = True q.append(i) if visited[n 1]: return ' INf' return d[n 1] print(main())
2
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5 min
From collections import deque def main(): n, m = [int(i) for i in input().split()] edges = [] for i in range(m): a, b, w = [int(i) for i in input().split()] edges.append((a 1, b 1, w)) d = [float('inf') for i in range(n)] d[0] = 0 for i in range(n 1): for e in edges: if d[e[1]] > d[e[0]] e[2]: d[e[1]] = d[e[0]] e[2] if d[n 1] == float('inf'): return 'IMPOSSIBLE' x = set() for a, b, w in edges: if d[a] != float('inf') and d[b] > d[a] w: x.add(b) q = deque(x) visited = [False] * n for v in x: visited[v] = True while q: v = q.popleft() for i in gr[v]: if not visited[i]: visited[i] = True q.append(i) if visited[n 1]: return ' INf' return d[n 1] print(main())
2
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9 min
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![From collections import deque def main(): n, m = [int(i) for i in input().split()] edges = [] for i in range(m): a, b, w = [int(i) for i in input().split()] edges.append((a 1, b 1, w)) d = [float('inf') for i in range(n)] d[0] = 0 for i in range(n 1): for e in edges: if d[e[1]] > d[e[0]] e[2]: d[e[1]] = d[e[0]] e[2] if d[n 1] == float('inf'): return 'IMPOSSIBLE' x = set() for a, b, w in edges: if d[a] != float('inf') and d[b] > d[a] w: x.add(b) q = deque(x) visited = [False] * n for v in x: visited[v] = True while q: v = q.popleft() for i in gr[v]: if not visited[i]: visited[i] = True q.append(i) if visited[n 1]: return ' INf' return d[n 1] print(main())](https://static.ahvideoscdn.net/cdn/uploads/uedhpcha68c/from-collections-import-deque-def-main-n-m-inti-for-i-in-input-split-edges-for-i-in-rangem-a-b-w-inti-for-i-in-input-split-edges-appenda-1-b-1-w-d-float03.jpg)
![From collections import deque def main(): n, m = [int(i) for i in input().split()] edges = [] for i in range(m): a, b, w = [int(i) for i in input().split()] edges.append((a 1, b 1, w)) d = [float('inf') for i in range(n)] d[0] = 0 for i in range(n 1): for e in edges: if d[e[1]] > d[e[0]] e[2]: d[e[1]] = d[e[0]] e[2] if d[n 1] == float('inf'): return 'IMPOSSIBLE' x = set() for a, b, w in edges: if d[a] != float('inf') and d[b] > d[a] w: x.add(b) q = deque(x) visited = [False] * n for v in x: visited[v] = True while q: v = q.popleft() for i in gr[v]: if not visited[i]: visited[i] = True q.append(i) if visited[n 1]: return ' INf' return d[n 1] print(main())](https://static.ahvideoscdn.net/cdn/uploads/keapfem1b9b/from-collections-import-deque-def-main-n-m-inti-for-i-in-input-split-edges-for-i-in-rangem-a-b-w-inti-for-i-in-input-split-edges-appenda-1-b-1-w-d-float0.jpg)
