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Why is my solution not working..I calculated the common diff and checked for which elements the AP is not followed. Someone plz help
By dd_07, history, 3 years ago, In English

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3 years ago, # |
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Auto comment: topic has been updated by dd_07 (previous revision, new revision, compare).

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3 years ago, # |
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Because you are comparing double values with each other.

The answer to this test is 8, when your code tells 9.

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11
1 -1 -100 -50 -60 2 -7 -25 -36 -4 3

Consider writing code without doubles or try to compare them proparly(std::abs(a — b) < eps)

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    3 years ago, # ^ |
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    Thnx a lot bro for this idea std::abs(a — b) < eps

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3 years ago, # |
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In order to check if 2 real numbers are equal, $$$a$$$ and $$$b$$$ for example, you should check if $$$|a - b| \leq \epsilon$$$ where $$$\epsilon$$$ is a small enough value, for instance $$$10^{-9}$$$.

In this case have to check if $$$\frac{a}{b} = c$$$, why don't you just check if $$$c * b = a$$$ ?

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    3 years ago, # ^ |
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    Thanks a lot bro..tried both the approach.I wasnt aware of |a−b|≤ϵ

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3 years ago, # |
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d1 = j - i
n1 = a[j] - a[i]
d2 = i - k
n2 = a[i] - a[k]
if(d1 * n2 != d2 * n1)cnt++

this will remove division and get u ACed I hope, you can check my last submission.

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