Lab Solutions

Bangladesh Open University School of Science and Technology B. Sc in Computer Science and Engineering Program 192 Term 1st Year 2nd Semester Final Examination Course Code & Title: CSE 12P8 Structured Programming Language Lab

Time: 3 Hours | Total Marks: 60

A. Choose and perform one experiment by lottery from out of the following experiments. 1×40=40

Exp 1. Any character is entered through the keyboard, write a C program to determine whether the
character entered is a capital letter, a small case letter, a digit or a special symbol. The
following table shows the range of ASCII values for various characters.

      Characters            ASCII Value
      A-Z                   65-90
      a-z                   97-122
      0-9                   48-57
      Special Symbol        0 - 47, 58 - 64, 91 - 96, 123 - 127

Ans 01

#include <stdio.h>
int main()
{
    char ch;
    printf("Enter a character: ");
    scanf("%c", &ch);
    if(ch >= 65 && ch <= 90)
    {
        printf("%c is a capital letter.", ch);
    }
    else if(ch >= 97 && ch <= 122)
    {
        printf("%c is a small letter.", ch);
    }
    else if(ch >= 48 && ch <= 57)
    {
        printf("%c is a digit.", ch);
    }
    else
    {
        printf("%c is a special symbol.", ch);
    }
    return 0;
}

Ans 01

Exp 2. Write a C program to sort a list of elements in ascending order.

Exp 3. Write a C Program to Display its own Source Code as Output.

Exp 4. Write a C program to find the LCM of five numbers.

Exp 5. Write a program to implement queues by the simple method of keeping the head of the queue
always in the first position of a linear array.

Exp 6. Write a program using the following operation on a given list:
(a) Function that deletes the last entry of a list.
(b) Function that deletes the first entry of a list.
(c) Function that reverse the order entry of a list.

Exp 7. A class contains 50 students who acquired marks in 10 subjects. Write a program to display
top 10 students roll numbers and marks in sorted order by using Bubble sorting techniques.

Exp 8. (a) Write C program to compute and display the sum of all integers that are divisible by
6 but not divisible by 4 and lie between 0 and 100. The program should also count
and display the number of such values.
(b) Write a C program to count vowels, consonants, digit and white space from a string.

Exp 9. Write a program in C to display the pattern like a diamond.

                *
             *  *  *
          *  *  *  *  *
       *  *  *  *  *  *  *
    *  *  *  *  *  *  *  *  *
       *  *  *  *  *  *  *
          *  *  *  *  *
             *  *  *
                *

Exp 10. Write a C program to find the length of a string without using the library function.