Skip to main content

Featured

C Program to Check Prime Number Using Efficient Logic

  Introduction A prime number is a number that has exactly two distinct positive divisors: 1 and itself. In this program, we check whether a given number is prime or not using a simple and efficient logic. This type of program is commonly used in mathematics, competitive programming, and basic algorithm learning for beginners in C programming. Problem Statement The task is to write a C program that determines whether a given integer is a prime number or not. The program takes a single integer input from the user and analyzes its divisibility. If the number has no divisors other than 1 and itself, it should be identified as a prime number; otherwise, it is not prime. This problem is important in number theory and has practical relevance in areas such as cryptography, data validation, and algorithm design.  Algorithm / Logic Explanation To check whether a number is prime, we need to verify that it is not divisible by any number other than 1 and itself. The algorithm follows a si...
Post a Comment
Read more
Labels

Print Odd Numbers Between Range in C

Print Odd Numbers Between Range in C

✅ C Program to Print Odd Numbers Between Two Numbers

#include <stdio.h>

int main() {
    int start, end;

    printf("Enter the starting number: ");
    scanf("%d", &start);
    printf("Enter the ending number: ");
    scanf("%d", &end);

    if (start > end) {
        printf("Invalid input! Starting number must be less than or equal to ending number.\n");
        return 1;
    }

    printf("Odd numbers between %d and %d are:\n", start, end);

    for (int i = start; i <= end; i++) {
        if (i % 2 != 0) {
            printf("%d ", i);
        }
    }

    printf("\n");
    return 0;
}

📘 Explanation:

✅ This program takes a range (start and end number) from the user.
✅ It checks for invalid input where the start is greater than end.
✅ It uses a for loop to iterate through the range.
✅ The i % 2 != 0 condition filters out the odd numbers.
✅ Each odd number in the range is printed in a single line.

🧾 Sample Output:

Enter the starting number: 10
Enter the ending number: 20
Odd numbers between 10 and 20 are:
11 13 15 17 19

🔑 Keywords:

Print odd numbers in C, range loop in C, C loop example, check odd in C, beginner C logic, % operator C

📌 Hashtags:

#CProgramming #OddNumbers #BeginnerC #NumberPatterns #ForLoop #InterviewPrep #CodingLogic

Labels:

Comments

Post a Comment

Popular Posts

🌙