Do not modify any part of this program that you are given. Doing so may cause you to fail automated test cases. // You are given a partially complete program. Your job is to complete the functions in order for this program to work successfully. // All instructions are given above the required functions, please read them and follow them carefully.

#pragma warning(disable : 4996)

// Read before you start:
// Do not modify any part of this program that you are given. Doing so may cause you to fail automated test cases.
// You are given a partially complete program. Your job is to complete the functions in order for this program to work successfully.
// All instructions are given above the required functions, please read them and follow them carefully.
// If you modify the function return types or parameters, you will fail the automated test cases.
// You can assume that all inputs are valid. Ex: If prompted for an integer, an integer will be input.

// Forward Declarations
void encryption(char[], int);
void decryption(char[], int);
void sortStrings(char[5][32]);
void matrix(int[50][50]);
void printMultiplicationTable(int[50][50], int);

// Problem 1: (5 points)
// In order to encrypt the input array of characters, we will shift those characters forward alphabetically by the integer value ‘e’
// If the input string is “hello” and e = 2, we will shift those characters forward alphabecially by 2 and the result will be “jgnnq”
// Hint: Use strlen() to find the amount of characters in the array
void encryption(char input[], int e)
{
int len = strlen(input);

for (int i = 0; i {
char chr = input[i];

if (chr == ‘z’)
chr = ‘a’;
else chr = chr + e;

input[i] = chr;

}
}

// Problem 2: (5 points)
// In order to decrypt the input array of characters, we will shift those characters backwards alphabetically by the integer value ‘d’
// If the input string is “jgnnq” and d = 2, we will shift those characters back alphabecially by 2 and the result will be “hello”
// Hint: this should be very similar to your encryption function
void decryption(char input[], int d)
{
int len = strlen(input);

for (int i = 0; i {
char chr = input[i];

if (chr == ‘z’)
chr = ‘a’;
else chr = chr – d;

input[i] = chr;
}
}

// Problem 3: (5 points)
// Swap the strings that are passed as parameters, this function will be used in Problem 4.
// If string1 is “hello” and string2 is “goodbye”, after calling this function, string1 will be “goodbye” and string2 will be “hello”.
void swapStrings(char string1[], char string2[])
{
char arrayswap[32];
strcpy(arrayswap, string1);
strcpy(string1, string2);
strcpy(string2, arrayswap);

}

// Problem 4: (20 points)
// Use the selection sort algorithm to alphabetically sort the strings in the 2D character array “strings”.
// If you are unfamiliar with selection sort, here is a visual example: https://en.wikipedia.org/wiki/Selection_sort
// NOTE: ‘A’ and ‘a’ should be considered alphabetically equivalent.
// NOTE: You MUST use the selection sort algorithm for your program to produce the correct output.
// NOTE: You MUST incorporate your “swapStrings” function to recieve full points for this part.
// See output provided in word document for example input and output.
void sortStrings(char strings[5][32])
{

}

// Problem 5: (10 points)
// Using the 2D integer array “input”, you are to fill the array with a multiplication table for the integer “num”
// For example: if num = 2, your output 2D array should contain:
// input[0][0] = 1
// input[0][1] = 2
// input[1][0] = 2
// input[1][1] = 4
// See output provided in word document for further clarification
void multiplicationTable(int input[50][50], int num)
{

}

// Problem 6: (5 points)
// Print the 2D array in the following format:
// 12
//24
// Use ‘t’ to print a tab after each index and ‘n’ to print a newline after each line
// Hint: this should be very similar to your multiplicationTable function
// See ouptut provided in word document for further clarification
void printMultiplicationTable(int input[50][50], int num)
{

}

// You should study and understand how this main function works.
// Do not modify it in any way, there is no implementation needed here.
void main()
{
int selection; // used for program selection

char input[32]; // used for encryption
int encrypt; // used for encryption

char strings[5][32]; // used for sorting

int num; // used for multiplication table
int mt[50][50]; // used for multiplication table

printf(“Select one of the following:n”); // prompt for program selection integer
printf(“1: Encryptionn”);
printf(“2. Sortingn”);
printf(“3. Multiplication Tablen”);
scanf(“%d”, &selection); // store program selection integer

getchar(); // consume ‘n’ char; NOTE: If you are using GCC, you may need to comment out this line
printf(“n”); // newline

switch (selection)
{
case 1:

printf(“Enter a string up to 20 characters long: “); // prompt for string
fgets(input, sizeof(input), stdin); // store string
input[strlen(input) – 1] = ”; // discard ‘n’ char; NOTE: If you are using GCC, you may need to comment out this line

printf(“Enter an Integer value for Encryption: “); // prompt for integer
scanf(“%d”, &encrypt); // store integer

encryption(input, encrypt); // encrypt string
printf(“nEncrypted String: %sn”, input); // print encrypted string

decryption(input, encrypt); // encrypt string
printf(“Decrypted String: %sn”, input); // print decrypted string

break;

case 2:

printf(“Enter the first String: “); // prompt for string
fgets(strings[0], sizeof(strings[0]), stdin); // store string

printf(“Enter the second String: “);
fgets(strings[1], sizeof(strings[1]), stdin);

printf(“Enter the third String: “);
fgets(strings[2], sizeof(strings[2]), stdin);

printf(“Enter the fourth String: “);
fgets(strings[3], sizeof(strings[3]), stdin);

printf(“Enter the fifth String: “);
fgets(strings[4], sizeof(strings[4]), stdin);

sortStrings(strings); // call sorting function

// print strings in sorted order
printf(“nSorted Strings:n%s%s%s%s%s”, strings[0], strings[1], strings[2], strings[3], strings[4]);

break;

case 3:

printf(“Enter an integer 1-50 for a multiplication table: “); // prompt for integer
scanf(“%d”, &num); // store integer

multiplicationTable(mt, num); // create multiplication table
printf(“n”); // newline
printMultiplicationTable(mt, num); // print multiplication table

 

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