359. Shopping Cart Total
EasyArithmetic
Items have price and quantity. If the subtotal is at least ₹1000, apply a 10% discount. Then add 5% tax. Print the final amount with 2 decimals.
Input format
Line 1: n Next n lines: price qty
Output format
The final amount.
Example 1
Input
2 250 2 100 3
Output
840.00
Example 2
Input
3 400 1 300 1 300 1
Output
945.00
Constraints
1 ≤ n ≤ 1000
Read input from standard input and print the answer to standard output. Your code is judged against 3 test cases, most of them hidden.
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