First Assignment

assignment.c

//problem 01
#include <stdio.h>

int main()
{
    int a = 5, b = 13;
    // Write code here
    int temp;
    temp = a;
    a = b;
    b = temp;
    // End of code
    printf("%d and %d", a, b);
    
    return 0;
}

//problem 02
#include <stdio.h>

int main()
{
    int a, b, c, d, large_num, small_num;
    scanf("%d %d %d %d", &a, &b, &c, &d);
    
    if(a > b && a > c && a > d)
        large_num = a;
    if (b > c && b > d && b > a)
        large_num = b;
    if (c > d && c > a && c > b)
        large_num = c;
    if (d > a && d > b && d > c)
        large_num = d;

    if (a < b && a < c && a < d)
        small_num = a;
    if (b < c && b < d && b < a)
        small_num = b;
    if (c < d && c < a && c < b)
        small_num = c;
    if (d < a && d < b && d < c)
        small_num = d;

    printf("Largest = %d\n", large_num);
    printf("Smallest = %d\n", small_num);

    return 0;
}


//problem 03
#include <stdio.h>

int main()
{
    long long int n;
    int i = 0;
    scanf("%lld", &n);
    
    while (n > 0)
    {
        n = n/10;
        i++;
    }
    

    printf("%d", i);
    return 0;
}


//problem 04
 #include <stdio.h>

int main()
{
    long long int n;
    int last_digit;
    int sum = 0;
    scanf("%lld", &n);
    while (n != 0)
    {
        last_digit = n%10;
        n = n/10;
        sum = sum + last_digit;
    }
    
    printf("%d", sum);
    return 0;
}


//problem 05

#include <stdio.h>

int main()
{
    int n;
    scanf("%d", &n);
    while(n > 1) {
        printf("%d, ", n);
        if(n%2 == 0) {
            n = n/2;
        } else {
            n = n - 1;
        }
    }
    
    printf("%d, ", n);
    return 0;
}

//problem 06
#include <stdio.h>

int main()
{
    int first_num, second_num;

    printf("Enter the first number: ");
    scanf("%d", &first_num);

    printf("Enter the second number: ");
    scanf("%d", &second_num);

    if(first_num%second_num == 0)
        printf("The first number is divisible by the second number.");
    else if (second_num%first_num == 0)
        printf("The second number is divisible by the first number.");
    else
        printf("None of them are divisible by the other.");

    return 0;
}


//problem 07

#include <stdio.h>

int main()
{
    int a, b;

    scanf("%d %d", &a, &b);

    while (b)
    {
        int temp = b;
        b = a % b;
        a = temp; 
    }
    printf("%d", a);
    return 0;
}


//problem 08

#include <stdio.h>

int main()
{
    int a, b, gcd, lcm;

    scanf("%d %d", &a, &b);
    int multi = a * b;
    while (b)
    {
        int temp = b;
        b = a % b;
        a = temp;
    }

    gcd = a;
    
    // we know that lcm = (a * b)/gcd
    lcm = multi / gcd;
    printf("%d", lcm);
    
    return 0;
}


//problem 09

#include <stdio.h>

int main()
{
    int n, i;

    scanf("%d", &n);
    printf("The factors of %d are: ", n);
    
    for (i = 1; i <= n; i++)
    {
        if(n%i == 0) {
            printf("%d, ", i);
        }
    }

    return 0;
}

great