C Programming Language Hands-On-Lab Challenge

Develop a hands-on C programming example that reads a year, uses the modulus operator to check leap years for non-century years, and notes limitations for century years.

Read names and ages of two people, compare ages to determine who is elder, and display the elder person's name or indicate a similar age.

Explore a C programming lab that implements railway fare concession eligibility using nested if and logical operators. Model age and gender criteria to determine 50% concession for South Central Railway.

Compare four numbers using logical operators and if statements to determine the biggest, read input with scanf, and print which value is the largest.

Learn to read two numbers, compare them, and handle the equal case, printing which value is biggest or that both numbers are equal in a C program.

Demonstrate nested switch case in C by validating an employee id and passcode, using 1001 and 1234 as the correct credentials and handling invalid inputs.

Learn to check even or odd numbers in C without using if, by applying ternary operators in two variations, and understand the difference between arithmetic expressions and zero comparison.

Print the inputted number that many times in C using two variables, number and count, with a while loop and printf, reading input with scanf.

Learn to write a C program that reads N numbers, computes their sum and average using a for loop, and uses proper typecasting for a precise average.

Explore a hands-on C programming lab that uses a while loop and the break keyword to enforce a 25,000 cash-on-delivery limit while building a shopping cart and redirecting to checkout.

participate in a C programming hands-on lab that simulates a shopping cart by reading five prices, using the continue keyword to skip items above ₹10,000 and update final cart value.

Print all Armstrong numbers from 0 to 1000 using an outer for loop and an inner while loop, checking digits by summing cubes with modulus and division by ten.

Learn to print all factors of a positive integer and count them using a C program, with input validation, a for loop, and clean, comma-separated output.

Learn to find the second biggest number by reading ten or more inputs in a loop, updating two trackers (big and s_big) to handle duplicates and reveal the result.

Generate the 1, 2, 4, 7, 11, 16 … series in C by updating the number with an increasing difference using a while loop and printf until 100.

Identify and print perfect numbers below 100 by using an outer loop to generate candidates and an inner loop to sum their divisors, printing when the sum equals the number.

Generate and print strong numbers below 1000 by summing factorials of digits using nested loops, extracting digits, and comparing to the original number.

Read a name and a 12-digit number, validate the Aadhaar number using long long arithmetic by counting digits, and confirm registration with a congratulatory message.

Print number patterns by treating them as a matrix and using nested for loops with i and j to form sequences like 112123123412345 and 1223334445555.

Write a program that reads an array of ten elements and displays them in reverse order, noting that indices start at zero and the last index is nine.

Read a user-defined array of n elements, compute the total and the average, and validate input 1–100 before processing.

Fill a ten-element array with prime numbers starting at three, using nested loops to test primality by dividing from two to number-1 and store and display each prime.

Learn to add two arrays by summing i-th element of the first array with (n-1-i)-th element of the second and storing the results in a third array in C.

Copy all elements from one array to another using a for loop, explaining why array assignment fails and guiding you to copy each element manually in C.

Learn to implement a linear search on an array containing duplicate elements in C, count and display every index where the key appears, and handle not found cases.

Explore binary search on a sorted array, using lower and upper bounds and midpoints to locate an element efficiently, with a practical C demonstration.

Learn to find minimum and maximum values in an array with a simple two-variable approach, initializing from the first element and updating in a loop.

Learn to count the frequency of each array element using a frequency array and nested loops, initializing counts to minus one and marking visited indices.

Learn to add two 3x3 matrices in C by reading data into two 2D arrays and storing the sum in a third array, using zero-based indexing and nested loops.

Multiply two 3x3 matrices in c by computing c[i][j] as the sum of a[i][k] * b[k][j] using i, j, and k loops, with arrays a, b, and c.

Fill a 5 by 4 matrix by rows, placing odd numbers in even-indexed rows and even numbers in odd-indexed rows, starting with 1 and 2 respectively.

Perform a linear search on a 5 by 5 double dimensional array filled with random numbers, locating a key and printing its position or index.

Learn to print the upper and lower triangles of a 5x5 matrix in C using i and j diagonal conditions, with the original array shown for reference.

Explore a C program that reads up to five subjects across four semesters, stores marks in a four-by-five array, and prints semester wise totals with two modeling approaches.

Learn to convert an input string to proper case by capitalizing the first letter of each word and lowering the rest, using gets and ASCII tricks in Code Blocks IDE.

Read a string and display each character with its ASCII code on a new line, using a for loop and %c/%d.

Demonstrates a simple password encryption by shifting each alphabet letter to its next character, preserving digits and special characters, with wrap from z to a and Z to A.

Learn to print the second word from an input string in C by using two for loops: first to position at the space, then to print the second word.

Discover how to print the last word of an input string in C++, without built-in functions, using two self-executing for loops to locate and print it.

Learn to reverse an input string in C by building your own logic, calculating length, and printing characters from end to start using a while loop, without ready-made functions.

Learn to build a C program that checks palindrome strings by calculating string length, comparing first and last characters with a for loop, and reporting whether input is a palindrome.

Learn to read a string with spaces and print the first character of each word using a loop that detects spaces. Example, it yields k j from Ashish Kumar Jain.

Learn in this hands-on lab to compute the length of a string without white spaces in C by iterating to the null terminator and counting non-space characters.

A C programming hands-on-lab explains a password check example: read two passwords, compare lengths, then verify character-by-character similarity using a flag to report similarity or mismatch.

Learn to copy a source string to a new target string while transforming vowels to uppercase and consonants to lowercase, using a C program with a for loop.

Develop a C program that validates password length, counts uppercase, lowercase, digits, and special characters, and outputs strength levels from weak to very strong.

Read a string and ask for a character, then print each index where the character occurs in the main string and display the total frequency in C programming.

Develop a C program in CodeBlocks IDE that reads a username and a masked password using getch, echoing stars for each character until enter, then prints both values.

Learn to check palindrome strings in C by using strcpy to copy the input to a temp variable, strrev to reverse it, and strcmp to compare with the original.

Learn to read ten names into a C string array and sort them in ascending alphabetical order using strcmp and strcpy, swapping to arrange strings with a temp buffer.

Learn to sort ten input names by length in ascending order in C, by storing each name’s length in an array and swapping names in tandem with the lengths.

Learn to read three subject marks and compute total and average using two separate functions in C: calc total and calc average, with input, output, and formatting.

Learn to find the biggest of two numbers using a separate C function that takes two ints, returns the greater, and prints it with printf.

Read a number from the user and increment it by one using a function in C, and understand how pass-by-value prevents updating the original variable, with pointers introduced later.

Practice converting prime-checking logic into a function in C by building a prime_check that reads a number, tests divisibility from two to number-1, and returns 1 or 0.

Learn to count the digits of an input number in C using a digit count function, with global declarations and a loop that divides by ten.

Learn how to pass a ten-element array to a function, fill it with random numbers, and count even and odd elements with dedicated count functions.

Master swapping two numbers using a global declaration and a no-parameter swap function. Learn how global variables enable in-function changes and why this approach risks data security.

Learn to build a banking menu application in C using functions to handle savings, current accounts, cash deposit, cash withdrawal, and loans, with a switch-based skeleton and function definitions.

Define a user defined header file and a reusable draw line function to generate a centered, formatted students marks list using printf, with screen width considerations.

Explore how recursion sums the first n natural numbers through a self-calling function. See examples for 3 and 10 as the recursion computes sums.

Calculate factorials using a recursive function, tracing calls and returns from number down to one.

Learn recursive decimal to binary conversion in C by repeatedly dividing by two and using remainders, printing the binary form from bottom to top with a dedicated convert function.

Read your name and print each character with its memory address to show the character data type occupies one byte and that array elements reside in consecutive memory locations.