15 lines
355 B
Python
15 lines
355 B
Python
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def my_sqrt(x):
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if x<2: return x
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left=1
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right=int(x/2)+1
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while left<=right:
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mid=int((left+right)/2)
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if mid*mid==x:
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return mid
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if mid*mid>x:
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right=mid-1
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else:
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left=mid+1
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return right
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print(my_sqrt(16))
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