C Programming Language || Hands On Coding

Cprogramming NumberReversal Algorithms

Can you flip a number in C?

#include <stdio.h>

int main() {
    int num, reversed_num = 0, remainder;

    printf("Enter an integer: ");
    scanf("%d", &num);

    while (num != 0) {
        remainder = num % 10;
        reversed_num = reversed_num * 10 + remainder;
        num /= 10;
    }

    printf("Reversed number = %d", reversed_num);

    return 0;
}

#Cprogramming #Factorial #Loop

Calculating Factorial: A Classic C Loop!

#include <stdio.h>

int main() {
    int n, i;
    unsigned long long factorial = 1;

    printf("Enter an integer: ");
    scanf("%d", &n);

    if (n < 0) {
        printf("Error! Factorial for negative numbers doesn't exist.");
    } else {
        for (i = 1; i <= n; ++i) {
            factorial *= i;
        }
        printf("Factorial of %d = %llu", n, factorial);
    }
    return 0;
}

#Cprogramming #Looping #Summation

What's the quickest way to add up the first N numbers in C?

#include <stdio.h>

int main() {
  int n, i, sum = 0;
  scanf("%d", &n);
  for (i = 1; i <= n; i++) {
    sum += i;
  }
  printf("%d\n", sum);
  return 0;
}

#Cprogramming #QuadraticEquation #MathInCode

Cracking Quadratic Equations: A C Code Adventure!

#include <stdio.h>
#include <math.h>

int main() {
    double a, b, c, discriminant, root1, root2, realPart, imagPart;

    printf("Enter coefficients a, b, and c: ");
    scanf("%lf %lf %lf", &a, &b, &c);

    discriminant = b * b - 4 * a * c;

    if (discriminant > 0) {
        root1 = (-b + sqrt(discriminant)) / (2 * a);
        root2 = (-b - sqrt(discriminant)) / (2 * a);
        printf("Root 1 = %.2lf and Root 2 = %.2lf\n", root1, root2);
    } else if (discriminant == 0) {
        root1 = root2 = -b / (2 * a);
        printf("Root 1 = Root 2 = %.2lf\n", root1);
    } else {
        realPart = -b / (2 * a);
        imagPart = sqrt(-discriminant) / (2 * a);
        printf("Root 1 = %.2lf+%.2lfi and Root 2 = %.2lf-%.2lfi\n", realPart, imagPart, realPart, imagPart);
    }

    return 0;
}

#Cprogramming #LeapYear #ConditionalLogic

Is it a Leap Year? C Code to Find Out!

#include <stdio.h>
#include <stdbool.h>

bool isLeapYear(int year) {
    if (year % 400 == 0) return true;
    if (year % 100 == 0) return false;
    return (year % 4 == 0);
}

int main() {
    int year;
    printf("Enter a year: ");
    scanf("%d", &year);
    if (isLeapYear(year)) {
        printf("%d is a leap year.\n", year);
    } else {
        printf("%d is not a leap year.\n", year);
    }
    return 0;
}

#CProgramming #Algorithm #BeginnerCode

Finding the Biggest: Can You Ace This C Challenge?

#include <stdio.h>

int main() {
  int a, b, c, largest;

  printf("Enter three numbers: ");
  scanf("%d %d %d", &a, &b, &c);

  largest = a;
  if (b > largest) {
    largest = b;
  }
  if (c > largest) {
    largest = c;
  }

  printf("Largest number = %d\n", largest);
  return 0;
}

🚨 **C Control Flow: Mastering Decisions & Loops!** 🚀 Ready to make your C programs *smart*? Control flow is how you tell your program *what* to do *when*! Think of it as giving your code a brain! **1. If-Else: The Decision Maker** * `if`: Executes code *only* if a condition is true. * `else`: Executes code if the `if` condition is false. * Example: ```c int age = 17; if (age >= 18) { printf("You can vote!\n"); } else { printf("You're not old enough to vote yet.\n"); } ``` * `else if`: Chain multiple conditions! **2. Switch: Multi-Way Branching** * Perfect for when you have *many* possible choices! * `switch` checks a variable against multiple `case` values. * `break`: Don't forget to `break` after each `case` to avoid falling through! * `default`: Runs if no `case` matches. * Example: ```c int day = 3; switch (day) { case 1: printf("Monday\n"); break; case 2: printf("Tuesday\n"); break; case 3: printf("Wednesday\n"); break; default: printf("Invalid day\n"); } ``` **3. Loops: Repeat Actions!** * **`for` loop:** Great when you know *exactly* how many times to repeat. ```c for (int i = 0; i < 5; i++) { printf("Hello, world! %d\n", i); } ``` * **`while` loop:** Repeats as long as a condition is true. ```c int i = 0; while (i < 5) { printf("Hello, world! %d\n", i); i++; } ``` * **`do-while` loop:** Similar to `while`, but *always* executes at least once. ```c int i = 0; do { printf("Hello, world! %d\n", i); i++; } while (i < 5); ``` **4. Loop Control: Break & Continue** * `break`: Jumps out of the loop *entirely*. * `continue`: Skips the rest of the current iteration and starts the next. Practice these concepts to become a C programming pro! #Cprogramming #ControlFlow #Loops #IfElse #ProgrammingTutorial

#Cprogramming #BitwiseOperators #BitManipulation

Bitwise Magic: Can you flip bits with finesse in C?

#include <stdio.h>

unsigned int flipBits(unsigned int n, unsigned int mask) {
    return n ^ mask;
}

int main() {
    unsigned int number = 10; 
    unsigned int bitsToFlip = 0b101; 
    unsigned int result = flipBits(number, bitsToFlip);
    printf("Original number: %u\n", number);
    printf("Mask: %u\n", bitsToFlip);
    printf("Number after flipping bits: %u\n", result);
    return 0;
}

#Cprogramming #IncrementDecrement #Coperators

Increment and Decrement in C: Mastering the Shortcuts!

#include <stdio.h>

int main() {
 int x = 5;
 int y = 10;
 int result1, result2;

 result1 = x++;
 printf("x: %d, result1: %d\n", x, result1);

 result2 = ++y;
 printf("y: %d, result2: %d\n", y, result2);

 x = 5;
 y = 10;

 printf("Initial x: %d, Initial y: %d\n", x, y);
 printf("Post-decrement x: %d\n", x--);
 printf("Pre-decrement y: %d\n", --y);
 printf("Final x: %d, Final y: %d\n", x, y);

 return 0;
}

#CProgramming #Functions #BasicC

Can you add two numbers... using functions in C?

#include <stdio.h>

int add(int a, int b) {
  return a + b;
}

int main() {
  int num1, num2, sum;

  printf("Enter two numbers: ");
  scanf("%d %d", &num1, &num2);

  sum = add(num1, num2);

  printf("Sum = %d\n", sum);

  return 0;
}

#CProgramming #ASCII #CharacterValue