CodeChef solution PRIZEPOOL - Total Prize Money Codechef solution in C,C++

 problrm Link : https://www.codechef.com/problems/PRIZEPOOL 

Problem

In a coding contest, there are prizes for the top rankers. The prize scheme is as follows:

• Top $10$ participants receive rupees $X$ each.
• Participants with rank $11$ to $100$ (both inclusive) receive rupees $Y$ each.

Find the total prize money over all the contestants.

Input Format

• First line will contain $T$, number of test cases. Then the test cases follow.
• Each test case contains of a single line of input, two integers $X$ and $Y$ - the prize for top $10$ rankers and the prize for ranks $11$ to $100$ respectively.

Output Format

For each test case, output the total prize money over all the contestants.

Constraints

Sample 1:

4
1000 100
1000 1000
80 1
400 30

19000
100000
890
6700

Explanation:

Test Case $1$: Top $10$ participants receive rupees $1000$ and next $90$ participants receive rupees $100$ each. So, total prize money $=10\cdot 1000+90\cdot 100=19000$.

Test Case $2$: Top $10$ participants receive rupees $1000$ and next $90$ participants receive rupees $1000$ each. So, total prize money $=10\cdot 1000+90\cdot 1000=100000$.

Test Case $3$: Top $10$ participants receive rupees $80$ and next $90$ participants receive rupee $1$ each. So, total prize money $=10\cdot 80+90\cdot 1=890$.

Test Case $4$: Top $10$ participants receive rupees $400$ and next $90$ participants receive rupees $30$ each. So, total prize money $=10\cdot 400+90\cdot 30=6700$.

CodeChef solution PRIZEPOOL  - Total Prize Money Codechef solution in C,C++