Question

WAP in c++ to Initialize the two variable and interchange there values without using third variable. ​

Answer 1

Answer:

I am not going to write the whole program as it is not a good practice. But I'll write down the key steps involved for solving the problem.

Explanation:

int a = 5;

int b = 10;

a = a + b;  // a = 5 + 10 = 15

b = a - b; // b = 15 - 10 = 5

a = a - b; // a = 15 - 5 = 10

cout<<"FIRST:"<<a<<"\t SECOND:"<<b;

Answer 2

Explanation:

The formula to calculate the simple interest is: simple_interest = (P * T * R) / 100 where P is principal amount, T is time & R is rate of interest.