PARTY of spoj; getting WA

general
, ,
1

The link to my code is tdwxRo - Online C Compiler & Debugging Tool - Ideone.com
I am unable to understand why my code is giving wrong answer.Please help to find the error.
Thanks in advance.

2

When non of the entrance fee will be selected.your solution is printing it wrong.
testcase:
20 2

21 10

21 5

0 0

and also your way of calculating minimum cost is wrong.

3

Thanks, I understood the case when noone of entrance fee will be selected.
Here is link to modified code NfQP2L - Online C Compiler & Debugging Tool - Ideone.com
But why my way of calculating minimum cost is wrong?It would be a great help if you could elaborate it.