Contents
Introduction to Problem Solving
⯈Algorithm and its Characteristics
⯈Elementary Problems
- Addition of two numbers
- Calculate area and circumference of circle
- Calculate area of triangle
- Calculate simple interest
- Calculate slope and distance between two points
- Convert length in feet to inches
- Weighted score in exam
- Convert temperature in degree Celsius to Fahrenheit
- Swap two numbers
- Swap two numbers without using extra variable
Basics of C Programming
- Overview of C Programming Language
- Getting started with C Programming Language
- Keywords
- Identifiers
- Constants
- Operators
- Expression Evaluation
- Mathematical expression to C equivalent expressions
- Datatypes
- Variables
- Integer representation in C
- Character representation in C
- Type conversion in C
- sizeof operator
- Comments
- Mathematical Functions
- input output statements
- width specifiers in C
- structure of a C program
- header files
- Compilation process of a C program
- Types of initializations.
⯈Basic C Programs
- C program to add two numbers
- C program to find area and circumference of circle
- C program to swap two numbers
- C program to swap two numbers without using extra variable
- C program to swap two numbers using bitwise XOR
- C program to convert temperature in Celsius to Fahrenheit
- C program to calculate gross salary of an employee
- C program to count number of digits in a positive integer
- C program to count number of digits in binary representation
- C program to count number of digits in base ‘K’
- C program to convert kilometer to meter, feet, inches and centimeters
- C program to find first and last digit of a number
- C program to find minimum number of currency denominations
- C program to convert cartesian coordinates to polar coordinates
- C program to find distance between two places on earth in nautical miles
- C program to find slope and distance between two points
- C program to add 1 to the number using ‘+’ operator
- C program to find maximum of two numbers using ternary operator
- C program to find maximum of three numbers using ternary operator
- C program to find kth bit of a number
- C program to find last four bits of a byte
Equality operators in C
The equality operators give the answer in the form of True or False only. In the previous section, we have seen what True is and what is False.
The equality operators are used to check the equality of two values. Are the values equal we use (==) , note it is double ==. If we want to check if the values are not equal, we use != (not equal to)
There are two equality operators.
is equal to (==)
This operator asks the question is LHS equal to RHS. If LHS is equal to RHS it gives answer as 1, otherwise it gives answer as 0.
Ex:
- 23==23, the answer is 1, since LHS (23) is equal to RHS (23)
- 0==0, the answer is 1, since LHS (0) is equal to RHS (0)
- 10==9, the answer is 0, since LHS (10) is not equal to RHS (9)
not equal to (!=)
This operator asks the question is LHS not equal to RHS. If LHS is not equal to RHS it gives answer as 1, otherwise it gives answer as 0.
Ex:
- 23!=23, the answer is 0, since LHS (23) is equal to RHS (23)
- 0!=0, the answer is 0, since LHS (0) is equal to RHS (0)
- 10!=9, the answer is 1, since LHS (10) is not equal to RHS (9)