338. Familystrokes Jun 2026

if __name__ == "__main__": main()

1 if childCnt(v) = 1 2 if childCnt(v) ≥ 2 0 if childCnt(v) = 0 338. FamilyStrokes

def main() -> None: data = sys.stdin.read().strip().split() if not data: return it = iter(data) n = int(next(it)) g = [[] for _ in range(n + 1)] for _ in range(n - 1): u = int(next(it)); v = int(next(it)) g[u].append(v) g[v].append(u) if __name__ == "__main__": main() 1 if childCnt(v)

The tree is drawn on a sheet of paper using straight line . A stroke can be: 338. FamilyStrokes