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sritama

Consider a list of numbers between 1 and n. How many of them are not 3 times another number on the list ?

  • 2 years ago
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  1. Arnab09
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    numbers except in form 3k

    • 2 years ago
  2. sritama
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    so how will u express it??

    • 2 years ago
  3. Arnab09
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    [ ] is the greatest integer function

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  4. Arnab09
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    forget those

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  5. Arnab09
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    n-[n/3]

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  6. experimentX
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    n - round up to lower integer[n/3]

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  7. Arnab09
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    greatest integer function, if n is a real number, [n] is the greatest integer less than n we express the fractional part as{n} so, n=[n]+{n}

    • 2 years ago
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