Question

Given n complex numbers each in the form x + yi, where x is the real part and y is the imaginary part, find their product.

Input Format
The first line of input consists of an integer t denoting the number of test cases. t test cases follow. The first line of each test case consists of an integer n, which denotes the number of complex numbers. Following n lines of the test case consists of two integers x and y separated by a space denoting x + yi.

Output Format
For each test case, output the product of the complex numbers. Each product is in the form p and q space separated denoting p + qi.

Answer 1

Answer:

Don`t know

Explanation:

Answer 2

Answer: C program

Explanation:

#include<stdio.h>

#include<conio.h>

int main(){

int t;

int x, y;

int prod;

while(t !=0){

scanf("%d", &x);

scanf("%d", &y);

prod = x * y;

printf("/n %d", prod);

}

getch();

}

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