FYBSC(CS)_Slip 4

 Q 1) A 

i. Write a ‘C’ program to accept three dimensions length (l), breadth(b) and height(h) of a cuboid and print surface area (surface area=2(lb+lh+bh)

#include <stdio.h>
int main()
{
    float length,breadth,height;
    float surfacearea;
    printf("Enter value of length, breadth & height of the cuboids:\n");
    scanf("%f%f%f", &length,&breadth,&height);
    surfacearea = 2 *(breadth * length + length * height + height * breadth);
    printf("Surface area of cuboids is: %.3f", surfacearea);
    return 0;
}

Program Output:

Enter value of length, breadth & height of the cuboids:
22
23
24
Surface area of cuboids is: 3172.000

ii Write a ‘C’ program to accept an array of n float values and display them in the reverse order.

#include <stdio.h>
int main()
{
    int i,n;
    float a[50];
    printf("\n\nRead n number of values in an array and display it in reverse order:\n");
    printf("------------------------------------------------------------------------\n");
    printf("Enter the number of elements to store in the array :");
    scanf("%d",&n);
    printf("Enter the data :\n",n);
    for(i=0;i<n;i++)
    {
      printf("array[%d] : ",i);
      scanf("%f",&a[i]);
    }
    printf("\nThe values store into the array are : \n");
    for(i=0;i<n;i++)
    {
       printf("%0.1f\t",a[i]);
    }
    printf("\n\nThe values store into the array in reverse are :\n");
    for(i=n-1;i>=0;i--)
    {
        printf("%0.1f\t",a[i]);
    }
    return 0;
}

Program Output:

Read n number of values in an array and display it in reverse order:
------------------------------------------------------------------------
Enter the number of elements to store in the array :6
Enter the data :
array[0] : 3.2
array[1] : 4.3
array[2] : 5.4
array[3] : 6.5
array[4] : 7.6
array[5] : 8.7

The values store into the array are :
3.2     4.3     5.4     6.5     7.6     8.7

The values store into the array in reverse are :
8.7     7.6     6.5     5.4     4.3     3.2

OR

Q 1) A Write a menu driven program to perform the following operations on an integer. Write separate functions.
1. Check if is even or odd
2. Check if it is prime
3. Exit

#include<stdio.h>
#include<conio.h>
int isEven(int num);
int isPrime(int num);
int main()
{
    int c=0, num, res;
    while(c!=3)
    {
        printf("\n1. Check if even or odd\n2. Check if Prime or not\n3. Exit\n");
        printf("\nEnter your choice:");
        scanf("%d", &c);
        switch(c)
        {
            case 1:
                printf("Enter an integer: ");
                scanf("%d", &num);
                res=isEven(num);
                if(res==1)
                    printf("\n%d is Even Number.\n\n",num);
                else
                    printf("\n%d is Odd Number.\n\n",num);
                break;
            case 2:
                printf("Enter an integer other than 1: ");
                scanf("%d", &num);
                res=isPrime(num);
                if(res==0)
                    printf("\n%d is Prime Number.\n\n",num);
                else
                    printf("\n%d is not a Prime Number.\n\n",num);        
                break;
            case 3:
                printf("\nExit");
                break;
            default:
                printf("\nWrong Choice...!");
        }
    }
}
int isEven(int num)
{
    if(num%2==0)
        return 1;
    else
        return 0;
}
int isPrime(int num)
{
    int i,flag=0;
    for(i=2;i<=num/2;i++)
    {
        if(num%i==0)
        {
            flag=1;
            break;
        }
    }
    return flag;
}

Program Output:

1. Check if even or odd
2. Check if Prime or not
3. Exit

Enter your choice:1
Enter an integer: 12

12 is Even Number.

1. Check if even or odd
2. Check if Prime or not
3. Exit

Enter your choice:2
Enter an integer other than 1: 7

7 is Prime Number.

1. Check if even or odd
2. Check if Prime or not
3. Exit

Enter your choice:3

Exit