C program to insert an element in an array

Posted by: Instanceofjava Posted date: September 03, 2017 / comment : 1

  • Program to insert an element in an array at a given position
  • C program to insert an element in an array without using function



Program #1: Write a c program to insert an element in array without using function
  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int main(int argc, char *argv[])
  5. {
  6.   int insarray[100], pos, c, n, value;
  7.  
  8.   printf("Enter number of elements of array\n");
  9.    scanf("%d", &n);
  10.  
  11.    printf("Enter all %d elements\n", n);
  12.  
  13.    for (c = 0; c < n; c++)
  14.       scanf("%d", &insarray[c]);
  15.  
  16.    printf("Enter the specific position where you wish to insert an element in array\n");
  17.    scanf("%d", &pos);
  18.  
  19.    printf("Enter the value to insert\n");
  20.    scanf("%d", &value);
  21.  
  22.    for (c = n - 1; c >= pos - 1; c--)
  23.       insarray[c+1] = insarray[c];
  24.  
  25.    insarray[pos-1] = value;
  26.  
  27.    printf("Resultant array is\n");
  28.  
  29.    for (c = 0; c <= n; c++)
  30.       printf("%d\n", insarray[c]);
  31.  
  32. getch();
  33. }
Output:

insert element in array c

C program to delete an element in an array

Posted by: Instanceofjava Posted date: September 03, 2017 / comment : 0

  • Write a c program to insert and delete an element in array
  • Write a c program to delete an element in an array
  • C Program to Delete the Specified Integer from an Array without using function



Program #1: Write a c program to insert and delete an element in array
  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int main(int argc, char *argv[])
  5. {
  6.   
  7.      int array[10];
  8.  
  9.     int i, n, position, element, exist = 0;
  10.  
  11.  
  12.     printf("Enter number of elements \n");
  13.  
  14.     scanf("%d", &n);
  15.  
  16.     printf("Enter the elements\n");
  17.  
  18.     for (i = 0; i < n; i++)
  19.  
  20.     {
  21.  
  22.         scanf("%d", &array[i]);
  23.  
  24.     }
  25.  
  26.     printf("Input array elements are\n");
  27.  
  28.     for (i = 0; i < n; i++)
  29.  
  30.     {
  31.  
  32.         printf("%d\n", array[i]);
  33.  
  34.     }
  35.  
  36.     printf("Enter the element to be deleted from array\n");
  37.  
  38.     scanf("%d", &element);
  39.  
  40.     for (i = 0; i < n; i++)
  41.  
  42.     {
  43.  
  44.         if (array[i] == element)
  45.  
  46.         {
  47.             exist = 1;
  48.  
  49.             position = i;
  50.  
  51.             break;
  52.  
  53.         }
  54.  
  55.     }
  56.  
  57.     if (exist == 1)
  58.  
  59.     {
  60.  
  61.         for (i = position; i <  n - 1; i++)
  62.  
  63.         {
  64.  
  65.             array[i] = array[i + 1];
  66.  
  67.         }
  68.  
  69.         printf("array after deletion  \n");
  70.  
  71.         for (i = 0; i < n - 1; i++)
  72.  
  73.         {
  74.  
  75.             printf("%d\n", array[i]);
  76.  
  77.         }
  78.  
  79.     }
  80.  
  81.     else
  82.  
  83.         printf("Given element %d is not exist in the array \n", element);
  84. getch();
  85. }
Output:
delete array element c

C programming power function example program

Posted by: Instanceofjava Posted date: May 20, 2017 / comment : 1 ,

  • C program to find power of a number using function.
  • Write a c program to find power of a number using function recursion



 Program #1 : Write a c program to find power of a number without using function recursion

  1.  #include<stdio.h>
  2. int main(){
  3.   int power,num,i=1;
  4.   long int sum=1;
  5.   printf("Enter a number:\n ");
  6.   scanf("%d",&num);
  7.   printf("\nEnter power:\n ");
  8.   scanf("%d",&power);
  9.   while(i<=power){
  10.             sum=sum*num;
  11.             i++;
  12.   }
  13.   printf("\n%d to the power %d is: %ld",num,power,sum);
  14.   getch();
  15. }

  Output:


power of number in c



  Program #2 : Write a c program to find power of a number using function recursion


  1.  #include<stdio.h>
     
  2. void powerofnumber(int power, int num);
  3. int main(){
  4.   int power,num,i=1;
  5.   long int sum=1;
  6.   printf("Enter a number:\n ");
  7.   scanf("%d",&num);
  8.   printf("\nEnter power:\n ");
  9.   scanf("%d",&power);
  10.   powerofnumber(power,num);
  11.   return 0;
  12. }
  13.  
  14. void powerofnumber(int power, int num){
  15.      int i=1,sum=1;
  16.      while(i<=power){
  17.             sum=sum*num;
  18.             i++;
  19.   }
  20.   printf("\n%d to the power %d is: %ld",num,power,sum);
  21.  
  22. }
 

Output:


  1. Enter a number:
  2.  23
  3.  
  4. Enter power:
  5.  3
  6.  
  7. 23 to the power 3 is: 12167

C program to display characters from a to z using loop

Posted by: Instanceofjava Posted date: May 20, 2017 / comment : 0 ,

  • C program to display characters from a to z using loop.
  • We can print all alphabets starting from A to Z using for loop.
  • Take a char variable and using for loop iterate it from A to Z.
  • Let us see an Example C program to print A to Z using for loop.



Program #1: Write a C program to print or display characters from A to Z using for loop.

  1. #include <stdio.h>
  2. int main()
  3. {
  4.     char c;
  5.  
  6.     for(c = 'A'; c <= 'Z'; ++c)
  7.       printf("%c ", c);
  8.     
  9.     return 0;
  10. }

   Output:

  1. 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

Program #2: Write a C Program to Display English Alphabets in Uppercase and Lowercase

  1. #include <stdio.h>
  2. int main()
  3. {
  4.      char c;
  5.  
  6.     printf("Enter u to display alphabets in uppercase. And enter l to display alphabets in
  7. lowercase: ");
  8.     scanf("%c", &c);
  9.  
  10.     if(c== 'U' || c== 'u')
  11.     {
  12.        for(c = 'A'; c <= 'Z'; ++c)
  13.          printf("%c ", c);
  14.     }
  15.     else if (c == 'L' || c == 'l')
  16.     {
  17.         for(c = 'a'; c <= 'z'; ++c)
  18.          printf("%c ", c);
  19.     }
  20.     else
  21.        printf("Error! You entered invalid character.");
  22.     getch();
  23. }
     

  Output:

print a to z c program

Convert string to integer c programming

Posted by: Instanceofjava Posted date: May 20, 2017 / comment : 0 ,

  • We can convert string to integer in c Programming by using atoi() function.
  • atoi() is a library function from C. 
  • int atoi(const char *str) ;
  • Now we will write a C program to convert String format number to integer.
  • Read input from user as string.
  • Convert string to integer using atoi() function.

Program #1: Write a C program to convert String to integer in c Programming.

  1. #include<stdio.h>
  2. #include<stdlib.h>
  3.  
  4. int main() {
  5.    int number;
  6.    char number_string[3];
  7.  
  8.    printf("Please Enter a number : ");
  9.    scanf("%s", number_string);
  10.  
  11.    number = atoi(number_string);
  12.    printf("\n number_string : %d", number);
  13.  
  14.    getch();
  15. }


 Output:


convert String to int in c program

Bubble sort algorithm in c with explanation

Posted by: Instanceofjava Posted date: May 20, 2017 / comment : 0 ,

  • Bubble sort is one of the example of sorting algorithm.
  • Bubble sort in data structure
  • Bubble sort is a procedure of sorting elements in ascending or descending order.
  • If we want to sort an array of numbers [4,2,3,1]  using bubble sort it will return [1,2,3,4] after sorting in ascending order.


 Bubble sort in c with explanation

  • Bubble sort algorithm of ascending order will move higher valued elements to right and lower value elements to left.
  • For this we need to compare each adjacent elements in an array and check they are in order or not if not swap those two elements.
  • After completion of first iteration highest value in the array will be moved to last or final position.
  • In the worst case all the highest elements in array like [9 8 7 5 4] completely in reverse order so we need to iterate all of the elements in N times.
  • Repeat this process N- 1 time in worst case to sort set of elements.
  • Worse case complexity : O(n2) 
  • In the best case scenario all the elements are already in sorted order so one iteration with no swaps required.
  • Best case complexity: O(n)
  • Let us see the graphical representation of explanation of bubble sort algorithm in c programming language.

Bubble sort algorithm with example diagram

bubble sort algorithm in c

Bubble sort algorithm pseudocode:

Program #1 : Write a C program to sort list of elements using bubble sort algorithm.

  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. //Bubble sort algorithm in c
  4. //www.instanceofjava.com
  5. int main(int argc, char *argv[])
  6. {
  7.    int array[100], n,i,j,k, swap;
  8.  
  9.   printf("Enter number of elements to sort\n");
  10.   scanf("%d", &n);
  11.  
  12.   printf("Enter %d elements \n", n);
  13.   for (i = 0; i< n; i++)
  14.     scanf("%d", &array[i]);
  15.  
  16.   printf("\nBefore sorting \n ");
  17.    for (k = 0; k < n; k++) {
  18.       printf("%5d", array[k]);
  19.    }
  20.  
  21.    for (i = 1; i < n; i++) {
  22.       for (j = 0; j < n - 1; j++) {
  23.          if (array[j] > array[j + 1]) {
  24.             swap = array[j];
  25.             array[j] = array[j + 1];
  26.             array[j + 1] = swap;
  27.          }
  28.       }
  29.       
  30.       }
  31.  
  32.  printf("\nAfter Bubble sort elements are:\n");
  33.    for (k = 0; k < n; k++) {
  34.       printf("%5d", array[k]);
  35.    }
  36.  
  37.   return 0;
  38. }

 Output:


bubble sort algorithm in c program recursive

  • Now we will see program on recursive bubble sort algorithm in c
  • Bubble sort using recursive function in c

Program #2: Write a c program for bubble sort using recursion


  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. //Bubble sort algorithm in c
  4. //www.instanceofjava.com
  5. void bubblesort(int array[], int n);
  6. int main(int argc, char *argv[])
  7. {
  8.    int array[10], n,i,k;
  9.  
  10.   printf("Enter number of elements to sort\n");
  11.   scanf("%d", &n);
  12.  
  13.   printf("Enter %d elements \n", n);
  14.   for (i = 0; i< n; i++)
  15.     scanf("%d", &array[i]);
  16.  
  17.   printf("\nBefore sorting \n ");
  18.    for (k = 0; k < n; k++) {
  19.       printf("%5d", array[k]);
  20.    }
  21.  bubblesort(array,n);
  22.    
  23.   getch();
  24. }
  25.  
  26. void bubblesort(int array[], int n){
  27.       int  i,j,k, swap;
  28.   for (i = 1; i < n; i++) {
  29.       for (j = 0; j < n - 1; j++) {
  30.          if (array[j] > array[j + 1]) {
  31.             swap = array[j];
  32.             array[j] = array[j + 1];
  33.             array[j + 1] = swap;
  34.          }
  35.       }
  36.       
  37.       }
  38.  
  39.  printf("\nAfter Bubble sort elements are:\n");
  40.    for (k = 0; k < n; k++) {
  41.       printf("%5d", array[k]);
  42.    }    
  43. }

Output:

  1. Enter number of elements to sort
  2. 6
  3. Enter 6 elements
  4. 9 8 2 3 5 1
  5.  
  6. Before sorting
  7.      9    8    2    3    5    1
  8. After Bubble sort elements are:
  9.     1    2    3    5    8    9

C program to find ASCII value of a string or character

Posted by: Instanceofjava Posted date: May 20, 2017 / comment : 0 , ,

  • Convert string to ascii c programming.
  • C program to find ascii value of a string or character.
  • C program to print ascii value of alphabets.
  • Now we will write a C program to print ASCII value of each character of a String.



Program #1: Write a C programming code to print ASCII value of String.


  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int main(int argc, char *argv[])
  5. {
  6.     char str[100];
  7.     int i=0;
  8.     printf("Enter any string to get ASCII Value of each Character \n");
  9.     scanf("%s",str);
  10.  
  11.     printf("ASCII values of each characters of given string:\n ");
  12.     while(str[i])
  13.          printf("%d \n",str[i++]);
  14.         
  15.     getch();
  16. }


Output:


Print Ascii value of string character c program
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