{"id":2898,"date":"2022-03-19T00:01:39","date_gmt":"2022-03-18T18:31:39","guid":{"rendered":"http:\/\/techlog360.com\/?p=2898"},"modified":"2022-03-19T00:01:44","modified_gmt":"2022-03-18T18:31:44","slug":"c-programming-examples","status":"publish","type":"post","link":"https:\/\/techlog360.com\/c-programming-examples\/","title":{"rendered":"C Programming Examples Every Beginner Must Know"},"content":{"rendered":"

C Programming is one of the widely used programming languages of all time. It was developed by Dennis Ritchie<\/a> between 1969 and 1973 at Bell Labs, and used to re-implement the Unix operating system<\/a>.<\/p>\n

C programming language is almost used in every field like developing operating systems, web development, software development. Speed, stability, and near-universal availability are some reasons for choosing C over interpreted languages. C has directly or indirectly influenced many later languages such as C#, D, Go, Java, JavaScript, Limbo, LPC, Perl, PHP, Python, and Unix’s C shell.<\/p>\n

In this article, we are going to share some C programming examples that every C beginner must know. These are basic C programs, that is going to help newbies<\/a> who just stepped in C programming world. So try them out :<\/p>\n

1. C Programming – Hello World<\/strong><\/span><\/h2>\n
#include<stdio.h>\nint main()\n{\nprintf(\"Hello world\");\nreturn 0;\n}\n<\/pre>\n
Output<\/span><\/strong><\/h3>\n
Hello world\n<\/pre>\n
Check out how to write “Hello, World !” program<\/a> in different programming languages.<\/p>\n
2. C Programming – Performing Arithmetic Operations<\/strong><\/span><\/h2>\n
#include<stdio.h>\nint main()\n{\nint a,b;\nprintf(\"Enter two numbers:\");\nscanf(\"%d%d\",&a,&b);\nprintf(\"Sum=%d difference=%d product=%d quotient=%d\",a+b,a-b,a*b,a\/b);\nreturn 0;\n}<\/pre>\n
Output<\/span><\/strong><\/h3>\n
Enter two numbers: 6 3\nSum=9 difference=3 product=18 quotient=2<\/pre>\n
3. C Programming – Find Area Of Circle<\/strong><\/span><\/h2>\n
#include<stdio.h>\nint main() \n{\nfloat radius, area;\nprintf(\"\\nEnter the radius of Circle : \");\nscanf(\"%d\", &radius);\narea = 3.14 * radius * radius;\nprintf(\"\\nArea of Circle : %f\", area);\nreturn 0;\n}<\/pre>\n
Output<\/span><\/strong><\/h3>\n
Enter the radius of Circle : 2.0\nArea of Circle : 6.14<\/pre>\n
4. C Programming – Find Greatest In 3 Numbers<\/strong><\/span><\/h2>\n
#include<stdio.h>\nint main() \n{\nint a, b, c;\nprintf(\"\\nEnter value of a, b & c : \");\nscanf(\"%d %d %d\", &a, &b, &c);\nif ((a > b) && (a > c))\nprintf(\"\\na is greatest\");\nif ((b > c) && (b > a))\nprintf(\"\\nb is greatest\");\nif ((c > a) && (c > b))\nprintf(\"\\nc is greatest\");\nreturn 0;\n}<\/pre>\n
Output<\/strong><\/span><\/h3>\n
Enter value for a,b & c : 15 17 21\nc is greatest<\/pre>\n
Also Read : Top 10 Cloud Programming Languages<\/a><\/strong><\/p>\n
5. C Programming – Find Even Or Odd<\/strong><\/span><\/h2>\n
#include<stdio.h>\nint main()\n{\nint n;\nprintf(\"Enter a number:\");\nscanf(\"%d\",&n);\nif(n%2==0)\n{\nprintf(\"Number is even\");\n}\nelse\n{\nprintf(\"Number is odd\");\n}\nreturn 0;\n}<\/pre>\n
Output<\/span><\/strong><\/h3>\n
Enter a number: 4\nNumber is even<\/pre>\n
6. C Programming – Display Factors Of A Number<\/strong><\/span><\/h2>\n
#include <stdio.h>\nint main()\n{\nint n,i;\nprintf(\"Enter a positive integer: \");\nscanf(\"%d\",&n);\nprintf(\"Factors of %d are: \", n);\nfor(i=1;i<=n;++i)\n{\nif(n%i==0)\nprintf(\"%d \",i);\n}\n  return 0;\n}<\/pre>\n
Output<\/strong><\/span><\/h3>\n
Enter a positive integer: 60\nFactors of 60 are: 1 2 3 4 5 6 12 15 20 30 60<\/pre>\n
7. C Programming – Check Prime Number<\/strong><\/span><\/h2>\n
#include <stdio.h>\nint main()\n{\nint n, i, flag = 0;\nprintf(\"Enter a positive integer: \");\nscanf(\"%d\",&n);\nfor(i=2; i<=n\/2; ++i)\n{\n\/\/ condition for nonprime number\nif(n%i==0)\n{\nflag=1;\nbreak;\n}\n}\nif (flag==0)\nprintf(\"%d is a prime number.\",n);\nelse\nprintf(\"%d is not a prime number.\",n);\nreturn 0;\n}<\/pre>\n
Output<\/strong><\/span><\/h3>\n
Enter a positive integer: 29\n29 is a prime number.<\/pre>\n
Also Read : What Is Programming And What Do Programmers Do?<\/a><\/strong><\/p>\n
8. C Programming – Check Leap Year<\/strong><\/span><\/h2>\n
#include<stdio.h>\nint main()\n{\nint year;\nprintf(\"Enter a year: \");\nscanf(\"%d\",&year);\nif(year%4 == 0)\n{\nif( year%100 == 0)\n{\n\/\/ year is divisible by 400, hence the year is a leap year\nif ( year%400 == 0)\nprintf(\"%d is a leap year.\", year);\nelse\nprintf(\"%d is not a leap year.\", year);\n}\nelse\nprintf(\"%d is a leap year.\", year );\n}\nelse\nprintf(\"%d is not a leap year.\", year);\nreturn 0;\n}<\/pre>\n
Output<\/strong><\/span><\/h3>\n
Enter a year: 1900\n1900 is not a leap year.<\/pre>\n
9. C Programming – Adding ‘n’ Numbers<\/strong><\/span><\/h2>\n
#include<stdio.h>\nint main()\n{\nint i,n,sum=0;\nprintf(\"Upto how many terms you want to find the sum:\");\nscanf(\"%d\",&n);\nfor(i=1;i<=n;i++){\nsum = sum + i;\n}\nprintf(\"Sum is %d\",sum);\nreturn 0;\n}<\/pre>\n
Output<\/strong><\/span><\/h3>\n
Upto how many terms you want to find the sum: 10\nSum is 55<\/pre>\n
10. C Programming – Factorial Of A Number<\/strong><\/span><\/h2>\n
#include <stdio.h>\nint main()\n{\nint n, i;\nunsigned long long factorial = 1;\nprintf(\"Enter an integer: \");\nscanf(\"%d\",&n);\n\/\/ show error if the user enters a negative integer\nif (n < 0)\nprintf(\"Error! Factorial of a negative number doesn't exist.\");\nelse\n{\nfor(i=1; i<=n; ++i)\n{\nfactorial *= i;              \/\/ factorial = factorial*i;\n}\nprintf(\"Factorial of %d = %llu\", n, factorial);\n}\nreturn 0;\n}<\/pre>\n
Output<\/strong><\/span><\/h3>\n
Enter an integer: 10\nFactorial of 10 = 3628800<\/pre>\n
11. C Programming – Generate Multiplication Table<\/strong><\/span><\/h2>\n
#include <stdio.h>\nint main()\n{\nint n, i;\nprintf(\"Enter an integer: \");\nscanf(\"%d\",&n);\nfor(i=1; i<=10; ++i)\n{\nprintf(\"%d * %d = %d \\n\", n, i, n*i);\n}\nreturn 0;\n}<\/pre>\n
Output<\/strong><\/span><\/h3>\n
Enter an integer: 9\n9 * 1 = 9\n9 * 2 = 18\n9 * 3 = 27\n9 * 4 = 36\n9 * 5 = 45\n9 * 6 = 54\n9 * 7 = 63\n9 * 8 = 72\n9 * 9 = 81\n9 * 10 = 90<\/pre>\n
12. C Programming – Fibonacci Series<\/strong><\/span><\/h2>\n
#include <stdio.h>\nint main()\n{\n    int i, n, t1 = 0, t2 = 1, nextTerm = 0;\n\n    printf(\"Enter the number of terms: \");\n    scanf(\"%d\",&n);\n\n    \/\/ displays the first two terms which is always 0 and 1\n    printf(\"Fibonacci Series: %d, %d, \", t1, t2);\n\n    \/\/ i = 3 because the first two terms are already dislpayed\n    for (i=3; i <= n; ++i)\n    {\n        nextTerm = t1 + t2;\n        t1 = t2;\n        t2 = nextTerm;\n        printf(\"%d, \",nextTerm);\n    }\n    return 0;\n}<\/pre>\n
Output<\/strong><\/span><\/h3>\n
Enter the number of terms: 10\nFibonacci Series: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34,<\/pre>\n
Also Read : Top 10 Programming Language That Will Help You to Get Dream Job<\/a><\/strong><\/p>\n
13. C Programming – Number Is Positive Or Negative<\/strong><\/span><\/h2>\n
#include <stdio.h>\nint main()\n{\n    double number;\n\n    printf(\"Enter a number: \");\n    scanf(\"%lf\", &number);\n\n    if (number <= 0.0)\n    {\n        if (number == 0.0)\n            printf(\"You entered 0.\");\n        else\n            printf(\"You entered a negative number.\");\n    }\n    else\n        printf(\"You entered a positive number.\");\n    return 0;\n}<\/pre>\n
Output<\/strong><\/span><\/h3>\n
Enter a number: 12.3\nYou entered a positive number.<\/pre>\n
14. C Programming – Reverse String Without Using Library Function <\/strong><\/span><\/h2>\n
#include<stdio.h>\n#include<string.h>\nint main()\n{\nchar str[100],rev[100];\nint i,len=0;\nprintf(\"Enter a string\");\ngets(str);\nfor(i=0;i<=100;i++)\n{\nif(str[i]=='\\0')\n{\nbreak;\n}\nlen++;\n}\nfor(i=0;i<=len-1;i++)\n{\nrev[i] = str[len-i-1];\n}\nprintf(\"reverse of the string is %s\",rev);\nreturn 0;\n}<\/pre>\n
Output<\/strong><\/span><\/h3>\n
Enter a string Johnson\nreverse of the string is nosnhoJ<\/pre>\n
15. C Programming – Display English Alphabets<\/strong><\/span><\/h2>\n
#include <stdio.h>\nint main()\n{\n    char c;\n\n    for(c='A'; c<='Z'; ++c)\n       printf(\"%c \",c);\n    \n    return 0;\n}<\/pre>\n
Output<\/strong><\/span><\/h3>\n
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z<\/pre>\n
16. C Programming – Palindrome<\/strong><\/span><\/h2>\n
#include <stdio.h>\nint main()\n{\n    int n, reversedInteger = 0, remainder, originalInteger;\n\n    printf(\"Enter an integer: \");\n    scanf(\"%d\", &n);\n\n    originalInteger = n;\n\n    \/\/ reversed integer is stored in variable \n    while( n!=0 )\n    {\n        remainder = n%10;\n        reversedInteger = reversedInteger*10 + remainder;\n        n \/= 10;\n    }\n\n    \/\/ palindrome if orignalInteger and reversedInteger is equal\n    if(originalInteger == reversedInteger)\n        printf(\"%d is a palindrome.\", originalInteger);\n    else\n        printf(\"%d is not a palindrome.\", originalInteger);\n    \n    return 0;\n}<\/pre>\n
Output<\/strong><\/span><\/h3>\n
Enter an integer: 1001\n1001 is a palindrome.<\/pre>\n
17. C Programming – Armstrong Number<\/strong><\/span><\/h2>\n
#include <stdio.h>\nint main()\n{\n    int number, originalNumber, remainder, result = 0;\n\n    printf(\"Enter a three digit integer: \");\n    scanf(\"%d\", &number);\n\n    originalNumber = number;\n\n    while (originalNumber != 0)\n    {\n        remainder = originalNumber%10;\n        result += remainder*remainder*remainder;\n        originalNumber \/= 10;\n    }\n\n    if(result == number)\n        printf(\"%d is an Armstrong number.\",number);\n    else\n        printf(\"%d is not an Armstrong number.\",number);\n\n    return 0;\n}<\/pre>\n
Output<\/strong><\/span><\/h3>\n
Enter a three digit integer: 371\n371 is an Armstrong number.<\/pre>\n
18. C Programming – Create Pyramid<\/strong><\/span><\/h2>\n
#include<stdio.h>\n \nint main() {\n   int i, j;\n   int num;\n \n   printf(\"Enter the number of Digits :\");\n   scanf(\"%d\", &num);\n \n   for (i = 0; i <= num; i++) {\n      for (j = 0; j < i; j++) {\n         printf(\"%d \", i);\n      }\n      printf(\"\\n\");\n   }\n   return 0;\n}<\/pre>\n
Output<\/strong><\/span><\/h3>\n
Enter the number of Digits : 5\n1\n2 2\n3 3 3\n4 4 4 4\n5 5 5 5 5<\/pre>\n
19. C Programming – Reverse A Number<\/strong><\/span><\/h2>\n
#include <stdio.h>\nint main()\n{\n    int n, reversedNumber = 0, remainder;\n\n    printf(\"Enter an integer: \");\n    scanf(\"%d\", &n);\n\n    while(n != 0)\n    {\n        remainder = n%10;\n        reversedNumber = reversedNumber*10 + remainder;\n        n \/= 10;\n    }\n\n    printf(\"Reversed Number = %d\",reversedNumber);\n\n    return 0;\n}<\/pre>\n
Output<\/strong><\/span><\/h3>\n
Enter an integer: 2345\nReversed Number = 5432<\/pre>\n
20. C Programming – Swap Two Numbers<\/strong><\/span><\/h2>\n
#include <stdio.h>\nint main()\n{\n      double firstNumber, secondNumber, temporaryVariable;\n\n      printf(\"Enter first number: \");\n      scanf(\"%lf\", &firstNumber);\n\n      printf(\"Enter second number: \");\n      scanf(\"%lf\",&secondNumber);\n\n      \/\/ Value of firstNumber is assigned to temporaryVariable\n      temporaryVariable = firstNumber;\n\n      \/\/ Value of secondNumber is assigned to firstNumber\n      firstNumber = secondNumber;\n\n      \/\/ Value of temporaryVariable (which contains the initial value of firstNumber) is assigned to secondNumber\n      secondNumber = temporaryVariable;\n\n      printf(\"\\nAfter swapping, firstNumber = %.2lf\\n\", firstNumber);\n      printf(\"After swapping, secondNumber = %.2lf\", secondNumber);\n\n      return 0;\n}\n<\/pre>\n
Output<\/strong><\/span><\/h3>\n
Enter first number: 1.20\nEnter second number: 2.45\n\nAfter swapping, firstNumber = 2.45\nAfter swapping, secondNumber = 1.20<\/pre>\n
These are some of the C programming examples that will help beginners in their coding journey. If you need more C programming examples please comment below and also share your doubts.<\/p>\n
Also Read : Important Programming Languages for Hackers<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"
C Programming is one of the widely used programming languages of all time. It was developed by Dennis Ritchie between 1969 and 1973 at Bell Labs, and used to re-implement the Unix operating system. C programming language is almost used in every field like developing operating systems, web development, software development. Speed, stability, and near-universal availability […]<\/p>\n","protected":false},"author":2,"featured_media":2907,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[227,511,45],"tags":[449,228,103,351,724],"class_list":{"0":"post-2898","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-programming","8":"category-list","9":"category-technology","10":"tag-c-programming","11":"tag-programer","12":"tag-programming","13":"tag-programming-languages","14":"tag-slider"},"jetpack_featured_media_url":"https:\/\/techlog360.com\/wp-content\/uploads\/2016\/05\/C-Programming-Examples-for-Beginner.jpg","jetpack_sharing_enabled":true,"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/techlog360.com\/wp-json\/wp\/v2\/posts\/2898","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/techlog360.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/techlog360.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/techlog360.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/techlog360.com\/wp-json\/wp\/v2\/comments?post=2898"}],"version-history":[{"count":0,"href":"https:\/\/techlog360.com\/wp-json\/wp\/v2\/posts\/2898\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/techlog360.com\/wp-json\/wp\/v2\/media\/2907"}],"wp:attachment":[{"href":"https:\/\/techlog360.com\/wp-json\/wp\/v2\/media?parent=2898"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/techlog360.com\/wp-json\/wp\/v2\/categories?post=2898"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/techlog360.com\/wp-json\/wp\/v2\/tags?post=2898"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}