Missing the inclusion of appropriate header file in c program will generate an error. Such a program may compile but the linker will given an error message as it will not be able to find the functions used in the program.

Semoclone ( ; ) is one of the best sensitive symbols in programming. Placing a semicolon ( ; ) after the WHILE or FOR loop is not a syntax error. So it will not be reported by the compiler. However, it is considered to be a logical error as it change

Not putting // before the start of single statement comment is a compiler error. Not putting the */ after the termination of block comment is a compiler error.

The iterative statement is one of the most important and interesting statements in the programming world. An iterative statement is used to repeat the execution of a list of statements, depending on the value of an integer expression.

When you are using SWITCH case, it is important to keep in mind that the inclusion of DEFAULT LABEL. This will inform you whether you are executing your program in right or wrong way. So, it is always recommended to use DEFAULT LABEL in the SWITCH st

// AHF C PROGRAM SOLVING //solving here ITERATIVES STATEMENTS type of programming problem

#include<stdio.h> #include<math.h> #define pf printf int main() { int n,i; //taking the number to continue loop pf("Enter any integer number: "); scanf("%d",&n); pf("\nThe multiplication table of %d is below.",n); for(i=0;i<=10;i++) pf("\n\t%d X %d = %d",n,i,(n*i)); //printing multiplication table return 0; }

Enter any integer number: 4 The multiplication table of 4 is below. 4 X 0 = 0 4 X 1 = 4 4 X 2 = 8 4 X 3 = 12 4 X 4 = 16 4 X 5 = 20 4 X 6 = 24 4 X 7 = 28 4 X 8 = 32 4 X 9 = 36 4 X 10 = 40

- Print first N natural number
- Print N natural number in a given range ( ascending way )
- Summation of first N natural number
- Calculate sum and average of first N natural number
- Print natural number in a given range ( decending way )
- Factorial of an integer number
- Input any key from key-board and display key's feature
- Calculate Summation of this series 1 + 1/2
^{2}+ 1/3^{2}+ ...... + 1/x^{2} - Calculate Summation of this series 1/2
^{2}+ 1/3^{3}+ ...... + 1/(x+1)^{(x+1)} - Calculate Summation of this series 1 + 2
^{2}/2 + 3^{2}/3 + ...... + x^{2}/x - Print 1 3 6 10 15 21 ........ this series

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