Rani Channamma University (RCU), Belagavi

Lab: C Programming (21BCA1C1P)

The 11 Part A and 6 Part B lab programs from the RCU BCA NEP 2020 syllabus for 21BCA1C1P, each with C code you can run, the exact sample input and output, a viva section and common mistakes.

Program list needs checking

The program list was taken from a copy of the RCU BCA NEP syllabus hosted on a college website, not from rcub.ac.in. Program titles are paraphrased. Confirm the current list on rcub.ac.in or with your department before relying on it.

RCU BCA curriculum under NEP 2020, Academic Year 2021-22 onwards (copy hosted by BLDEA college AQAR)(opens in a new tab)read 2026-10-15

Lab programs

1Area and Circumference of a Circle in CPart A, item 1. Read the radius of a circle and print its area and circumference.
2Largest of Three Numbers in CPart A, item 2. Read three integers and print the largest one, using an if-else ladder.
3Using math.h Library Functions in CPart A, item 3. Read a number and demonstrate common functions from math.h: square root, power, ceiling, floor and absolute value.
4Factorial of a Number in CPart A, item 4. Read a non-negative integer and print its factorial, the product of all whole numbers from 1 up to it.
5Fibonacci Sequence of n Terms in CPart A, item 5. Read n and print the first n terms of the Fibonacci sequence, where each term is the sum of the two before it.
6Digit Sum, Reverse and Palindrome Check in CPart A, item 6. Read a positive integer, find the sum of its digits, reverse it, and report whether it is a palindrome.
7Sum of Positive Numbers Until 999 in CPart A, item 7. Keep reading integers from the keyboard until the user enters 999, and add up only the positive ones.
8Percentage Message Using switch in CPart A, item 8. Read a percentage of marks from 0 to 100 and print a message for its range, using a switch statement.
9Roots of a Quadratic Equation Using an else-if Ladder in CPart A, item 9. Find the roots of ax² + bx + c = 0 and demonstrate the decision with an else-if ladder that covers distinct, equal and imaginary roots.
10Average of Marks in CPart A, item 10. Read the marks a student scored in a number of subjects and print their average.
11Remove Duplicate Elements from an Array in CPart A, item 11. Read a one-dimensional array of integers and remove repeated values, keeping the first occurrence of each.
12Swap Two Numbers in CPart B, item 1. Read two integers and exchange their values using a temporary variable, through a function that receives pointers.
13Count Letters, Digits, Vowels, Spaces and Symbols in CPart B, item 2. Read a line of text and count its alphabets, digits, vowels, consonants, spaces and special characters.
14Reverse a String Without Library Functions in CPart B, item 3. Read a line of text and reverse it in place, without using any string library function.
15Length of a String Without strlen in CPart B, item 4. Read a line of text and find its length by counting characters, without calling strlen.
16String Functions strlen, strcpy, strcat and strcmp in CPart B, item 5. Demonstrate the standard string functions strlen, strcpy, strcat and strcmp on two words entered by the user.
17Read, Display and Trace of a Square Matrix in CPart B, item 6. Read an n x n matrix, display it, and compute its trace, which is the sum of the elements on the main diagonal.