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  1. n = input("")
  2. fac_2n = 1
  3. fac_n = 1
  4. for i in range(1,int(2*n)+1):
  5. 	fac_2n = fac_2n*i
  6. for i in range(1,int(n)+1):
  7. 	fac_n = fac_n*i;
  8. ans = int(fac_2n/fac_n*fac_n*(n+1))
  9. print(ans)
Runtime error #stdin #stdout #stderr 0.18s 23564KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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Traceback (most recent call last):
  File "./prog.py", line 1, in <module>
EOFError: EOF when reading a line
https://ideone.com/kjKaFS
language:
Python 3 (python  3.12)
created:
5 years ago
visibility:
public

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