[Solution] Chef and Wire Frames CodeChef Solution

Problem

Chef has a rectangular plate of length $N cm$ and width $M cm$. He wants to make a wireframe around the plate. The wireframe costs $X$ rupees per cm.

Determine the cost Chef needs to incur to buy the wireframe.

Input Format

• First line will contain $T$, the number of test cases. Then the test cases follow.
• Each test case consists of a single line of input, containing three space-separated integers $N,M,$ and $X$ — the length of the plate, width of the plate, and the cost of frame per cm.

Output Format

For each test case, output in a single line, the price Chef needs to pay for the wireframe.

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Explanation:

Test case $1$: The total length of the frame is $2\cdot 10 + 2\cdot 10 = 40$ cms. Since the cost is $10$ per cm, the total cost would be $10 \cdot 40 = 400$.

Test case $2$: The total length of the frame is $2\cdot 23 + 2\cdot 3 = 52$ cms. Since the cost is $12$ per cm, the total cost would be $52 \cdot 12 = 624$.

Test case $3$: The total length of the frame is $2\cdot 1000 + 2\cdot 1000 = 4000$ cms. Since the cost is $1000$ per cm, the total cost would be $4000 \cdot 1000 = 4000000$.