Buy Please with Solution

Buy Please:

Problem Description:

Chef went to a shop and buys a pens and b pencils. Each pen costs x units and each pencil costs y units. Now find what is the total amount Chef will spend to buy a pens and b pencils.

Input:

·       First-line will contain 4 space-separated integers a, b, x, and y respectively.

Output:

Print the answer in a new line.

Constraints

·       1≤a,b,x,y≤10³

Sample Input 1:

    2 4 4 5

Sample Output 1:

    28

Sample Input 2:

    1 1 4 8

Sample Output 2:

    12

EXPLANATION:

·       In the first example, total cost is (2 * 4 + 4 * 5) = 28.

·       In the second example, total cost is (1 * 4 + 1 * 8) = 12. 

Solution:

C++:

#include <iostream>
using namespace std;
int main() {
    int a,b,x,y;
    cin>>a>>b>>x>>y;
    cout<<(a*x+b*y);
    return 0;
}

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