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  1. a,b=map(float, input().split())
  2. if a!=0:
  3. print(f"{-b/a:.1f}")
  4. else:
  5. if b==0:
  6. print("Vo_so_nghiem")
  7. else:
  8. print("Vo_nghiem")
Success #stdin #stdout 0.04s 9188KB
stdin
0 1
stdout
Vo_nghiem