Question

1. Write a program in C++ to enter any 3 digit number and find the product of the first and the last digit.

2. Write a program in C++ to input any number and to find whither the number is positive or negative.

Please solve this C++ ​

Answer 1

Answer:

here is your answer mate

Explanation:

answer 1:

1.Input a number from user. ...

2.To find last digit of given number we modulo

divide the given number by 10 . ...

3. To find first digit we divide the given number by 10 till num is greater than 0 .

4. Finally calculate sum of first and last digit i.e. sum = firstDigit + lastDigit .

answer 2:

The program output is shown below.

1.#include<iostream>

2.int num;

3.cout << "Enter the number to be checked : ";

4.cin >> num;

5.if (num >= 0)

6.cout << num << " is a positive number.";

7.cout << num << " is a negative number.";

8.return 0;

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Answer 2

Answer:

1 . Logic to find sum of first and last digit using loop

Logic to find sum of first and last digit using loopInput a number from user. ...

Logic to find sum of first and last digit using loopInput a number from user. ...To find last digit of given number we modulo divide the given number by 10 . ...

Logic to find sum of first and last digit using loopInput a number from user. ...To find last digit of given number we modulo divide the given number by 10 . ...To find first digit we divide the given number by 10 till num is greater than 0 .

Logic to find sum of first and last digit using loopInput a number from user. ...To find last digit of given number we modulo divide the given number by 10 . ...To find first digit we divide the given number by 10 till num is greater than 0 .Finally calculate sum of first and last digit i.e. sum = firstDigit + lastDigit .

2. #include<iostream>

int num;

cout << "Enter the number to be checked : ";

cin >> num;

if (num >= 0)

cout << num << " is a positive number.";

cout << num << " is a negative number.";

return 0;