Programming in C

Exercises from Stephen G. Kochan's book Programming in C, 3rd Edition, 2005

Some code presented here is based on the solutions of Henrik Samuelsson.

Contents

• Chapter 3: Compiling and running your first program
• Chapter 4: Variables, data types and arithmetic expressions
• Chapter 5: Program looping
• Chapter 6: Making decision
• Chapter 7: Working with arrays
• Chapter 8: Working with functions
• Chapter 9: Working with structures
• Chapter 10: Character strings
• Chapter 11: Pointers
• Chapter 12: Operations on bits
• Chapter 13: The preprocessor
• Chapter 14: More on data types
• Chapter 16: Input and output operations in C

Chapter 3: Compiling and running your first program

• Exercise 1: source code from the chapter
  • 3.1 - output
  • 3.2 - multiple lines of output
  • 3.3 - output with line breaks
  • 3.4 - displaying values
  • 3.5 - displaying multiple values
  • 3.6 - comments
• Exercise 2: displaying multiple lines of output
• Exercise 3: output without line breaks
• Exercise 4: displaying the result of an expression in one step
• Exercise 5: displaying the result of an expression in two steps
• Exercise 6: initializing integer variables

Chapter 4: Variables, data types and arithmetic expressions

• Exercise 1: source code from the chapter
  • 4.1 - basic variable types
  • 4.2 - arithmetic operators
  • 4.3 - more arithmetic operators
  • 4.4 - modulus operator
  • 4.5 - basic type conversions
• Exercise 4: fahrenheit - celsius conversion
• Exercise 5: initializing character variables
• Exercise 6: evaluation of polynomial
• Exercise 7: evaluation of expression with exponentials
• Exercise 8: next largest even multiple

Chapter 5: Program looping

• Exercise 1: source code from the chapter
  • 5.1 - the eighth triangular number
  • 5.2 - the 200th triangular number, the for loop
  • 5.3 - table of triangular numbers
  • 5.4 - input for triangular number
  • 5.5 - nested for loop
  • 5.6 - the while loop
  • 5.7 - greatest common divisor
  • 5.8 - reversing digits of a number
  • 5.9 - the do-wile loop
• Exercise 2: table of squares
• Exercise 3: triangular numbers for every 5th number between 5 and 50
• Exercise 4: first ten factorials
• Exercise 5: restructured code
• Exercise 6: table of triangular numbers, 05-03 modified
• Exercise 7: formating output
• Exercise 8: amount of triangular numbers by user input, 05-05 modified
• Exercise 9: modified source code from the chapter with while loops
  • the 200th triangular number, 05-02 modified
  • table of triangular numbers, 05-03 modified
  • input for triangular number, 05-04 modified
  • nested while loop, 05-05 modified
• Exercise 11: sum of digits

Chapter 6: Making decisions

• Exercise 1: source code from the chapter
  • 6.1 - absolute value of an integer
  • 6.2 - average of grades, number of failing grades
  • 6.3 - determine parity
  • 6.4 - determine parity with if-else
  • 6.5 - determine leap year
  • 6.6 - signum function
  • 6.7 - categorize a single character
  • 6.8 - evaluate simple expression: number - operator - number
  • 6.8A - evaluate simple expression, 06-08 modified
  • 6.9 - evaluate simple expression with switch-case, 06-08A modified
  • 6.10 - table of prime numbers
  • 6.10A - table of prime numbers with stdbool, 06-10 modified
• Exercise 2: check if two numbers are are evenly divisible
• Exercise 3: division of two integers
• Exercise 4: simple calculator
• Exercise 5: reversing digits of a number, 05-09 modified
• Exercise 6: displaying number with english words
• Exercise 7: table of prime numbers, 06-10A modified

Chapter 7: Working with arrays

• Exercise 1: source code from the chapter
  • 7.1 - simple expressions with arrays
  • 7.2 - counter array
  • 7.3 - first 15 Fibonacci numbers
  • 7.4 - table of prime numbers with arrays
  • 7.5 - initializing arrays
  • 7.6 - character arrays
  • 7.7 - conversion of positive integer of base ten to another base
  • 7.8 - Fibonacci numbers with variable length arrays
• Exercise 2: initializing array, 07-01 modified
• Exercise 3: counter array, 07-02 modified
• Exercise 4: averaging floats
• Exercise 5: geometric sequence
• Exercise 6: first 15 Fibonacci numbers without arrays, 07-03 modified
• Exercise 7: the Sieve of Eratosthenes

Chapter 8: Working with functions

• Exercise 1: source code from the chapter
  • 8.1 - defining a function
  • 8.2 - calling a function, 08-01 modified
  • 8.3 - calling a function multiple times, 08-01 modified
  • 8.4 - n. triangular number function
  • 8.5 - greatest common divisor function
  • 8.6 - greatest common divisor function, 08-05 modified
  • 8.7 - absolute value function
  • 8.8 - square root function (Newton–Raphson method)
  • 8.9 - minimum function
  • 8.10 - minimum function with variable length array, 08-09 modified
  • 8.11 - modifing array elements from functions
  • 8.12 - sorting function
  • 8.13 - multidimensional array as function parameter
  • 8.13A - multidimensional array with variable length as function parameter, 08-13 modified
  • 8.14 - conversion of positive integer of base ten to another base, 07-07 modified
  • 8.15 - static and automatic variables
  • 8.16 - factorial function (recursive)
• Exercise 2A: n. triangular number function, 08-04 modified
• Exercise 2B: n. triangular number function, 05-05 modified
• Exercise 3: square root function (Newton–Raphson method), 08-08 modified
• Exercise 4: square root function (Newton–Raphson method), 08-e03 modified
• Exercise 5: square root function (Newton–Raphson method), 08-e04 modified
• Exercise 6: square root function (Newton–Raphson method), 08-e05 modified
• Exercise 7: power function
• Exercise 8: find the real roots of a quadratic equation
• Exercise 9: least common multiple function
• Exercise 10: determine if a number is a prime
• Exercise 11: sum function
• Exercise 12A: transpose matrix function
• Exercise 12B: transpose variable size matrix function, 08-e12A modified
• Exercise 13: sorting function, 08-12 modified
• Exercise 14: modified source code of the exercises with global variables
  • determine if a number is a prime, 08-e10 modified
  • sum function, 08-e11 modified
  • transpose matrix function, 08-e12A modified
  • sorting function, 08-e13 modified
• Exercise 15: conversion of positive integer of base ten to another base, 08-14 modified
• Exercise 16: conversion of positive integer of base ten to another base, 08-e15 modified

Chapter 9: Working with structures

• Exercise 1: source code from the chapter
  • 9.1 - defining a structure
  • 9.2 - tomorrow's date
  • 9.3 - tomorrow's date, 09-02 modified
  • 9.4 - function to return tomorrow's date, 09-03 modified
  • 9.5 - increment time
  • 9.6 - array containing structs
  • 9.7 - struct containing arrays
• Exercise 2: number of days between two dates
• Exercise 3: elapsed time
• Exercise 4: determine what day is a certain date
• Exercise 5: update time and date
• Exercise 6: tomorrow's date, 09-04 modified

Chapter 10: Character strings

• Exercise 1: source code from the chapter
  • 10.1 - concatenate two strings
  • 10.2 - determine the length of a string
  • 10.3 - concatenate two strings, 10-01 modified
  • 10.4 - equality of two strings
  • 10.5 - reading a string with scanf
  • 10.6 - reading a line of text
  • 10.7 - count the number of words in a line
  • 10.8 - count the number of words in a text
  • 10.9 - find word in a dictionary
  • 10.10 - find word in a dictionary, 10-09 modified
  • 10.11 - convert string to numerical value
• Exercise 3: count the number of words in a line, 10-07 modified
• Exercise 4: extract substring function
• Exercise 5: find substring function
• Exercise 6: remove substring function
• Exercise 7: insert substring function
• Exercise 8 & 9: replace string function
• Exercise 10: sort dictionary function
• Exercise 11: convert string to integer, 10-11 modified
• Exercise 12: convert string to float
• Exercise 13: uppercase function
• Exercise 14: convert integer to string

Chapter 11: Pointers

• Exercise 1: source code from the chapter
  • 11.1 - declaring pointers
  • 11.2 - pointers basics
  • 11.3 - pointers in expressions
  • 11.4 - pointers referencing structures
  • 11.5 - structures containing pointers
  • 11.6 - linked lists
  • 11.7 - traversing linked lists
  • 11.8 - pointers and functions
  • 11.9 - changing values from functions with pointers
  • 11.10 - returning a pointer from a function
  • 11.11 - pointers referencing arrays
  • 11.12 - arraySum function with pointers, 11-11 modified
  • 11.13 - pointers referencing strings
  • 11.14 - copyString function with pointers, 11-13 modified
  • 11.15 - stringLength function with pointers
• Exercise 2: insertEntry function
• Exercise 3: insertEntry function, 11-e02 modified
• Exercise 4: removeEntry function
• Exercise 5: doubly linked lists
• Exercise 6: functions for doubly linked lists
• Exercise 7: sorting function, 08-e13 modified
• Exercise 8: sort3 function
• Exercise 9: readLine function, 10-06 modified
• Exercise 10: compareStrings function, 10-10 modified
• Exercise 11: dateUpdate function, 09-e06 modified
• Exercise 12: various printf parameters

Chapter 12: Operations on bits

• Exercise 1: source code from the chapter
  • 12.1 - bitwise AND operation
  • 12.2 - bitwise operations
  • 12.3 - bitwise shift function
  • 12.4 - bitwise rotate function

Chapter 13: The preprocessor

• Exercise 1: source code from the chapter
  • 13.1 - the #define statement
  • 13.2 - more on the #define statement
  • 13.3 - the #include statement
    • metric.h
• Exercise 3: MIN macro
• Exercise 4: MAX3 macro
• Exercise 5: SHIFT macro, 12-03 modified
• Exercise 6: IS_UPPER_CASE macro
• Exercise 7: IS_ALPHABETIC macro
• Exercise 8: IS_DIGIT and IS_SPECIAL macros
• Exercise 9: ABSOLUTE_VALUE macro
• Exercise 10: PRINTX macro
• Exercise 11: isupper, isalpha, isdigit functions of the standard library

Chapter 14: More on data types

• 14.1 - the enumerated type
• Exercise 1: defining a function pointer type
• Exercise 2: monthName function
• Exercise 3: type conversions

Chapter 16: Input and output operations in C

• Exercise 1: source code from the chapter
  • 16.1 - printf format specifiers
  • 16.2 - redirecting input
    • infile
  • 16.3 - copying the contents of a file into another
• Exercise 3: copying and modifing contents of a file
• Exercise 4: display the combined contents of two files
• Exercise 5: display part of every line of a file
• Exercise 6: display contents of a file by groups of 20 lines
• lowercase, infile1, infile2, longtext