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  1. import math
  2.  
  3. def solve(n):
  4.     # Calculate integer square root of n and avoid recalculating values
  5.     sqrt_n = int(math.isqrt(n))
  6.     return min(n - sqrt_n * sqrt_n, (sqrt_n + 1) * (sqrt_n + 1) - n)
  7.  
  8. if __name__ == '__main__':
  9.     n = int(input().strip())
  10.     print(solve(n))
  11.  
Success #stdin #stdout 0.02s 25584KB
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Standard input is empty
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import math

def solve(n):
    # Calculate integer square root of n and avoid recalculating values
    sqrt_n = int(math.isqrt(n))
    return min(n - sqrt_n * sqrt_n, (sqrt_n + 1) * (sqrt_n + 1) - n)

if __name__ == '__main__':
    n = int(input().strip())
    print(solve(n))
https://ideone.com/ZFHRbU
language:
PHP (php 7.3.5)
created:
3 days ago
visibility:
public

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