Max time complexity based on constraints

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In general you can do approximately 10⁷ to 10⁸ operations per second depending upon the type of operations and the speed of the language

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n	Max time complexity
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n ≤ 12	O(n!).
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n ≤ 25	O(2n).
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n ≤ 100	O(n4).
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n ≤ 500	O(n3).
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n ≤ 104	O(n2).
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n ≤ 106	O(n log n).
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n ≤ 108	O(n).
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n > 108	O(log n) or O(1).
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