Question

For programming C language

This problem will be briefly discussed in Lab2 and the TĀ will give you hints to solve it. However, the TĀ will not write the code. This code is a bit complicated, so try to understand the process from the TA so that you can continue working on it at home. Reverse the Number Write a program that takes a 5-digit number as input and print the reverse of the number. Sample Input/Output: Enter a five digit number: 78945 Reverse Number: 54987 Hints (Read this hints and you will understand how you can solve the problem!): You can use mod (%) operator and division (() in this process. The operation a%b returns the reminder of the division of a/b. And integer division of a/b will give you the whole part of the division operation (not the fractional part). For example: 5%2 is 1, and 5/2 is 2. For solving the problem let us consider the following example: Let's say our number be 78945. So, 78945%10 will give you 5 and it will be the first digit of your new number. Now, you have to get 4 from the above number. However, 4 is not the last digit of the number to apply the same formula (mod by 10). However, the integer division 78945/10 will give you 7894. Now, we can apply the same formula 7894%10 and we get 4 from there. Following the same process above, we can get each digit of the number. Use as many variables you want to keep track the numbers! Now, how to generate the new number? If you know the digits and their position in the number, we can generate it! See how we use the individual digits to generate our new number: 5* 10000 + 4 * 1000 + 9*100+8*10+7 what is the value of this expression?" Activate Windows Go to Settings to activate Windows

Answer 1

#include <stdio.h>

int main() {
    int n, d1, d2, d3, d4, d5;
    printf("Enter a five digit number: ");
    scanf("%d", &n);
    d1 = n % 10;
    n /= 10;
    d2 = n % 10;
    n /= 10;
    d3 = n % 10;
    n /= 10;
    d4 = n % 10;
    n /= 10;
    d5 = n;
    printf("Reverse Number: %d\n", d1*10000+d2*1000+d3*100+d4*10+d5);
    return 0;
}

Enter a five digit number: 78945 Reverse Number: 54987