__      ___		___  ___  _    ___  __   ___  
|__ |   |   | \    /   |    |   | |\ |  |  |__| |   | |
|   |__ |___|  \/\/    |___ |___| | \|  |  |''\ |___| |___
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a1. Write a C program to print "Hello World".
a2. Write a C program to copy input to output.
a3. Write a C program which takes in input string and returns the length of the string.
a4. Write a C program to convert fahranheit into celsius.
a5. Write a C program to print a statement using ternary operator.
a6. Write a C program to check if a number is even or odd.
a7. Write a C program to find the largest among the three numbers.
a8. Write a C program to demonstrate switch-case and break.
a9. Write a C program to execute a simple calculator.
a10. Write a C program to calculate the sum of first N natural numbers.
a11. Write a C program to read input until user enters a positive number.
a12. Write a C program to check if a number is prime or not.
a13. Write a C program to read 15 integer from user and print sum of only positive integers.
a14. Write a C program to read integers until user enters a negative integer or number of integer read reaches to 15.
a15. Write a C program to find the factorial of a given number.
a16. Write a C program to print half pyramid using */+.
a17. Write a C program to count the digits in the number.
a18. Write a C program to check if a number is an armstrong number or not.
a19. Write a C program to print the following pattern.
  	         *
  		***
 	       *****
              *******
a20. Write a C program to check if a number is a palindrome or not.
a21. Write a C program to generate fibonacci sequence.
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|__ |  | |\ | |     |   |  |  | |\ |
|   |__| | \| |___  |  _|_ |__| | \|
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a22. Write a C program to swap two numbers.
a23. Write a C program to implement pow() function.
  _    __   __    _         ___ 
 /_\  |__| |__|  /_\  \__/ |___ 
/   \ |``\ |``\ /   \   /   ___|
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a24. Write a C program to check if the two arrays a and b have an element in common.
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|___   |  |___|  |  |\ | | _--
 ___|  |  |''\  _|_ | \| |__||
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a25. Write a C program to implement strcpy().
a26. Write a C program to implement strcat().
a27. Write a C program to implement strcmp().
a28. Write a C program to count the number of characters.(from a file)
a29. Write a C program to implement strrev().
a30. Write a C program to remove all the occurances of a character from the string.
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|__  |  |   |__   |   / || ||
|   _|_ |__ |__  _|_ /  ||_||
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a31. Write a C program to read an external file and print number of characters.
a32. Write a C program to read user input and write it to an external file.
a33. Write a C program to read a stream of characters.(dynamic)
a34. Write a C program to count the input lines from external files.

LINKED LISTS
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a35. Write a C program to do the following ::
    1> Insert integers dynamically into node in singly linked list.
    2> Insert an integer in front of the singly linked list.
    3> Insert an integer at the end of singly linked list.
    4> Print the linked list.
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|    |  ||___   |  ||  || | \/ |
|___ |__| ___|  |  ||__|| |    |
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c1. Write a C program to multiply (any numeric int) X 5^(numeric int). Without multiplying them. BY --> 839478 X 625 => 839478 X 5^4 => (839478 X 10^4)/2^4
c2.
c3. Write a C program for insertion of a node in Linked List (on the basis of some constraints). Assume :: Sorted Linked List. Make a node with user input and append accordingly.
c4.
c5. Write a C program for, given an array A your task is to tell at which position the equilibrium first occurs in the array. Equilibrium position in an array is a position such that the sum of elements below it is equal to the sum of elements after it.
c6. Write a C program for, given n non-negative integers in array representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining.
c7. Write a C program for, given an array of distinct elements, rearrange the elements of array in zig-zag fashion in O(n) time. The converted array should be in form a < b > c < d > e < f.The relative order of elements is same in the output i.e you have to iterate on the original array only.
c8. Write a C program for, given a number N, our task is to find the closest Palindrome number whose **absolute** difference with given number is minimum.
c32. Write a C program for Stock Buy & Sell.