DRCHEF----only 3 subtask WA

Can anyone point out some corner cases for which the solution is wrong. here is my solution—https://www.codechef.com/viewsolution/35583056
P.S. I have already spent lot of time debugging and my code seems to work like one in editorial.

I had the same error.
Consider this condition
5 5
1 2 3 4 6
Ans = 5
But your code gives 6.

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Actually you are missing these kind of test cases!
1
2 10
9 27
Ans: 3

Hope, It helps… It took hell out of time to figure this small tc.

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After sorting, start from the element A[i] such that A[i]2*x. All the elements before A[i] will cured in a day. https://www.codechef.com/viewsolution/35329151