Question

How to add the first and last digit of 0101 in c++? write a program step by step in c++.

Answer 1

Answer:

hello, if we are talking about 0101 as a binary number where it is equivalent

to 5 in decimal of base 10 then, both the first and last digit of the number are

same so you can simply do this int c = 5 + 0; cout << c;

this will result in 5 as output.

BUT, if we are talking about 0101 as a natural number i.e. one hundred one

then there is a simple trick to add first & last digits of it

simply do this..

#include <iostream>

int main() {

int num = (0101)%10 + (0101) %1000;

cout << num; //outputs 1 as the answer

return 0;

}

OR you can do this as well;

int num = 0101%10; //it will give you the first digit

while(num >0 && num<10) num /= 10; //this will reduce num to single leftmost

                                                         // digit

Reference:

for further material on such questions please visit

for modulo operator

https://brainly.in/question/3824772

for arithmetic operations in c++

https://brainly.in/question/1762969