chef and array(April Challenge) is not available in practice

general
1

I have learned The segmented tree and wanted to test the concept in this question.Bt I m not able to find the question in the practice questions

2

It is available here FRMQ Problem - CodeChef

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3

In challenge i got 20points.Now this time I have used segment tree and I want to check the ans to it.bad Luck This time too I got 70pts only