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// main.c

// CCorrection

// Created by P1kachu on 14/09/14.

// Reviewed by:

// - No one yet.

// Function prototypes will not be added in a different header file to make it easier,

// but you should use headers in practice.

#include <stdio.h>

#include <stdlib.h>

#include <string.h> //easier for string processing

#include <time.h> //for random generation

#define NUMBEROFELEMENTS(x) (int)(sizeof (x) / sizeof (x[0])) //used to check how many elements are in an array for example

//Function prototypes

void TriForce();

char *Hello(char name[]);

int Addition(int a, int b);

int Subtraction(int a, int b);

int Multiplication(int a, int b);

int Division(int a, int b);

int rdm();

int rdmBounds(unsigned int min, unsigned int max);

void logic_gates(int op1, int gate, int op2);

void reverse(char str[]);

int main()

{

// Part One:

// FIXME: Declare variables

// Declare two variables: an integer named "age", and a string named "name" with corresponding values (your name and age)

int age = 19;

char name[] = "Stan";

// FIXME: Print

// Print the following sentence in the console "You are NAME and you are AGE years old !". Don't forget to add a newline at the end

printf("You are %s and you are %d years old !\n", name, age);

// FiXME: Concatenation

// Create a new string variable called "hello" which value is "Hello ". Add "name" at the end of "hello" (Concatenation) then print it

char hello[] = "Hello ";

strcat(hello, name);

printf("%s\n", hello);

// FIXME: Array

// create a new string array called "shoppingList", with three elements of your choice. Create an int variable containing the number of

// elements in "shoppingList" (using a function of the array/using the array)

char *shoppingList[3] = {"milk", "a Chevy Camaro", "a life"};

const int nbOfElements = numberOfElements(shoppingList);

// FIXME: For-loop - Integer

// Create a simple for-loop for an integer "i" going from 1 to 10 that print the value of "i"

for (int i = 0; i < 10; i++)

printf("%d ", i);

printf("\n");

// FIXME: For-loop - shoppingList

// Create a for loop that iterate through "shoppingList" and prints each element with "You have to buy (elemt)".

for (int j = 0; j <nbOfElements; j++)

printf("You have to buy %s\n", shoppingList[j]);

// FIXME: Foreach-loop

// Do the same with a foreach-loop.

// The C programming language doesn't have a foreach, but you can look for macros if you are

// curious.

// FIXME: If-statement

// Modify the first for-loop (with i from 1 to 10) such that it prints "(value of i) is even" when "i" is divisible

// by 2 (You may want to learn more about "modulo" (%)). Else, print "(value of i) is odd".

for (int i = 0; i < 10; i++)

{

if (i % 2)

printf("%d is odd\n", i);

else

printf("%d is even\n", i);

}

// FIXME: Sum Up

// Create a string variable called "element" with the value of your choice. Then create a for-loop/foreach-loop that checks if "shoppingList"

// contains "element". If yes, print "You have to buy (value of element) !", and stop the loop (search how to stop a loop).

// If not, print "Nope, you don't need (value of "element")".

char element[] = "a life";

for (int k = 0; k < nbOfElements; k++)

{

if (strcmp(element, shoppingList[k]) == 0)

{

printf("You have to buy %s !\n", shoppingList[k]);

break;

}

else

{

printf("Nope, you don't need %s !\n", shoppingList[k]);

}

// Part Two:

// FIXME: Functions - Ascii

// Create a function that returns nothing and which doesn't takes any parameter. It should just be named "TriForce"

// and print the TriForce symbol (one triangle over two other ones, can be found on internet) with "TRIFORCE"

// Don't forget to call the function !

TriForce(); //Calling the functions in main()

// FIXME: Functions - One parameter

// Create a function that takes a string as parameter and returns "Hello (value of string) !"

// http://stackoverflow.com/questions/1745726/how-to-store-printf-into-a-variable

printf("%s", Hello("Stan"));

// FIXME: Functions - Multiple parameters

// Create a function that takes two integers as parameters and returns the addition of these two.

// You can do the same with multiplication, subtraction and division.

printf("%d\n", Addition(5, 12));

printf("%d\n", Subtraction(5, 12));

printf("%d\n", Multiplication(5, 12));

printf("%d\n", Division(5, 12)); // returns 0 because "a" and "b" are Integers

printf("%d\n", Division(10, 2));

// FIXME: User entry

// Create a string variable that takes what the user enter in the console as value. Then print "You entered (value of string)"

char userInput[100]; // 100 will be the max length of the input

printf("Enter a word:");

scanf("%s", userInput);

printf("You entered %s\n", userInput);

// FIXME: While loop

// Create a while loop that takes a number and divides it by 2 until it is less than 3

int number = 52;

while (number > 3)

{

number /= 2; //or number = number / 2;

printf("%d ", number);

}

printf("\n");

// FIXME: do-While loop

// Do the same with a do-while loop

int number2 = 84;

{

number2 = number2 / 2;

printf("%d ", number2);

} while (number2 > 3);

printf("\n");

// FIXME: Random generator

// Create a function that returns a random number

srand((unsigned)time(NULL)); // time used for seeding

printf("%d\n", rdm());

// FIXME: Random generator with bounds

// Create another function that returns a random number between two bounds given as parameters.

printf("%d\n", rdmBounds(10, 20));

// FIXME: Multi-dimensionnal array

// Create a two dimensionnal int array of 3 columns and 3 rows. Use 2 for-loops to add a random number

// between 1 and 9 in each of the 9 rooms.

// You may use one of the two previously created function.

// Then print them such that they appear like this (with [x1, x9] being the 9 random integers):

// {x1, x2, x3, }

// {x4, x5, x6, }

// {x7, x8, x9, }

int multiArray[3][3];

for (int l = 0; l < numberOfElements(multiArray); l++)

for (int m = 0; m < numberOfElements(multiArray[l]); m++)

multiArray[l][m] = rdmBounds(1, 9);

for (int n = 0; n < numberOfElements(multiArray); n++)

{

printf("{");

for (int o = 0; o < numberOfElements(multiArray[n]); o++)

printf("%d, ", multiArray[n][o]);

printf("}\n");

}

// FIXME: Switch

// Create a Switch that takes an integer "a" and return a sentence regarding the value of a

// (Create 3 statements for 3 specific values and a default one)

int a = 2;

switch(a)

{

case 0:

printf("a is 0\n");

break;

case 2:

printf("a is 2\n");

break;

case 37:

printf("Who cares about a anyway ?");

break;

default:

printf("I don't know what \"a\" is... :'(\n");

break;

}

// FIXME: logic Gates

// Create 7 functions for each logic gates (And (0), Or (1), No (2), Nand (3), Nor (4), Xnor (5), Xor (6)).

// Each function takes two booleans as parameters and returns the result of the logic gate.

// (or You can do it with a switch and only one function)

logic_gates(1, 0, 1);

logic_gates(1, 1, 1);

logic_gates(1, 2, 1);

// FIXME - Reverse

// Create a function that reverse a string

reverse("Hello world");

return 0;

}

void TriForce()

{

printf(" /\\ \n");

printf(" /__\\ \n");

printf(" /\\ /\\ \n");

printf("/__\\/__\\ \n");

printf("TRIFORCE\n");

}

char * Hello(char name[])

{

char *buf;

size_t sz;

sz = snprintf(NULL, 0, "Hello %s!\n", name);

buf = (char *)malloc(sz + 1); /* make sure you check for != NULL in real code */

snprintf(buf, sz+1, "Hello %s!\n", name);

return buf;

}

int Addition(int a, int b)

{

return a + b;

}

int Subtraction(int a, int b)

{

return a - b;

}

int Multiplication(int a, int b)

{

return a * b;

}

int Division(int a, int b)

{

return a / b;

}

int rdm()

{

return rand();

}

int rdmBounds(unsigned int min, unsigned int max)

{

return (rand()% max - min) + min;

}

void logic_gates(int op1, int gate, int op2)

{

// op1 and op2 being 1 or 0 (easier)

switch(gate)

{

case 0:

printf("%d AND %d = %d\n", op1, op2, (op1 && op2));

break;

case 1:

printf("%d OR %d = %d\n", op1, op2, (op1 || op2));

break;

case 2:

printf("NO %d = %d\n", op1, !op1);

break;

case 3:

printf("%d NAND %d = %d\n", op1, op2, !(op1 && op2));

break;

case 4:

printf("%d NOR %d = %d\n", op1, op2, !(op1 || op2));

break;

case 5:

printf("%d XNOR %d = %d\n", op1, op2, (op1 == op2));

break;

case 6:

printf("%d XOR %d = %d\n", op1, op2, !(op1 == op2));

break;

default:

printf("Not a valid gate\n");

}

void reverse(char str[])

{

for (int i = strlen(str); i >= 0; --i)

printf("%c", str[i]);

printf("\n");

}