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

Specifier is a typedef-name and a very sensitive in C programming. Using an incorrect specifier for the data type being read or written will generate a run time error.

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.

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 test expression done on exact statement. The good habit of using test expression on exact or fulfill statement. So do not use floating point numbers for checking for equality in the test expression.

// AHF C PROGRAM SOLVING #include<stdio.h> #include<stdlib.h> #include<math.h> #define pf printf int main() { float x1=0.0,x2=2.0,value_x1,value_x2,mid_point=0.0,value_mid_point,error,divide,mul; pf("\nEnter the error: "); scanf("%f",&error); repeat_again: value_x1=(1 * pow(x1,2)) - (1 * x1 ) - 2; value_x2=(1 * pow(x2,2)) - (1 * x2 ) - 2; divide=(x2 - x1)/(value_x2 - value_x1); mul=(value_x1 * divide); mid_point= (x1 - mul); value_mid_point=(1 * pow(mid_point,2)) - (1 * mid_point ) - 2; if(value_x1 * value_x2 > 0 || value_x1 * value_mid_point == 0) { pf("\nno root"); goto end; } if(value_x1 * value_mid_point < 0) x2=mid_point; else x1=mid_point; //below line showing operation into repeat_again statement label //pf("\nmid_point: %f\nv_x1: %f\nv_x2: %f\nv_m: %f\nx1: %f\nx2: %f\na-v: %f\n\n\n",mid_point,value_x1,value_x2,value_mid_point,x1,x2,((x2-x1)/x2)); if(((x2-x1)/x2)<error) { pf("\nThe root is: %f",((x1+x2)/2.0)); goto end; } else goto repeat_again; end: exit(1); }

Enter the error: 0.001 no root

- Array 2_D - read and display ( 2 * 2 ) matrix
- Array_ print the smallest of N numbers
- Array_ interchange large and smallest number
- Array_ print largest and smallest number with position separately
- Array_ print second largest and smallest number with position separately
- Array_ input N number of digits and form a single number
- Array_ find duplicate number in a array
- Array 2_D - in small shop - there 5 salesman where each have to sall 3 products calculate ( 1 ) the total sales by each salesman and ( 2 ) total sales of each product
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- String_ compare two string
- String_ find any character with position
- String_ space count
- String_ find string length
- Array 2_D - transposed matrix

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