Tasks Details
easy
1.
CountFactors
Count factors of given number n.
Task Score
100%
Correctness
100%
Performance
100%
A positive integer D is a factor of a positive integer N if there exists an integer M such that N = D * M.
For example, 6 is a factor of 24, because M = 4 satisfies the above condition (24 = 6 * 4).
Write a function:
def solution(N)
that, given a positive integer N, returns the number of its factors.
For example, given N = 24, the function should return 8, because 24 has 8 factors, namely 1, 2, 3, 4, 6, 8, 12, 24. There are no other factors of 24.
Write an efficient algorithm for the following assumptions:
- N is an integer within the range [1..2,147,483,647].
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Solution
Programming language used Python
Time spent on task 1 minutes
Notes
not defined yet
Code: 21:39:05 UTC,
java,
autosave
Analysis
Analysis
Analysis summary
The solution obtained perfect score.
Analysis
Detected time complexity:
O(sqrt(N))
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Correctness tests
1.
0.040 s
OK
2.
0.040 s
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1.
0.040 s
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2.
0.036 s
OK
3.
0.040 s
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4.
0.036 s
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5.
0.048 s
OK
6.
0.036 s
OK
7.
0.036 s
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8.
0.036 s
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9.
0.036 s
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10.
0.036 s
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1.
0.036 s
OK
2.
0.040 s
OK
1.
0.036 s
OK
2.
0.036 s
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3.
0.040 s
OK
1.
0.040 s
OK
2.
0.040 s
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1.
0.040 s
OK
2.
0.040 s
OK
1.
0.040 s
OK
2.
0.040 s
OK
1.
0.036 s
OK
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Performance tests
1.
0.036 s
OK
2.
0.036 s
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1.
0.036 s
OK
2.
0.036 s
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3.
0.036 s
OK
1.
0.036 s
OK
2.
0.036 s
OK
3.
0.040 s
OK
1.
0.036 s
OK
2.
0.040 s
OK
1.
0.040 s
OK
2.
0.040 s
OK
3.
0.040 s
OK
1.
0.040 s
OK
2.
0.044 s
OK
3.
0.044 s
OK