Here are the C code snippets for each part of your request, using dynamic memory allocation and standard string functions.
Initial Setup for all parts:
For each part, we'll dynamically allocate memory for 5 strings: "Go", "Away ", "Run ", "Now", "Hurry ". We'll ensure enough space is allocated for each string, including the null terminator.
#include <stdio.h>
#include <stdlib.h> // For malloc, free
#include <string.h> // For strlen, strcpy, strcat, strcmp
// Helper function to initialize strings (used in each part)
void initialize_strings(char **s1, char **s2, char **s3, char **s4, char **s5) {
// Determine max length for initial strings to allocate sufficient memory
int max_len = 0;
if (strlen("Go") > max_len) max_len = strlen("Go");
if (strlen("Away ") > max_len) max_len = strlen("Away ");
if (strlen("Run ") > max_len) max_len = strlen("Run ");
if (strlen("Now") > max_len) max_len = strlen("Now");
if (strlen("Hurry ") > max_len) max_len = strlen("Hurry ");
// Allocate memory for each string (max_len + 1 for null terminator)
*s1 = (char *)malloc(sizeof(char) * (max_len + 1));
*s2 = (char *)malloc(sizeof(char) * (max_len + 1));
*s3 = (char *)malloc(sizeof(char) * (max_len + 1));
*s4 = (char *)malloc(sizeof(char) * (max_len + 1));
*s5 = (char *)malloc(sizeof(char) * (max_len + 1));
// Check for successful allocation
if (!*s1 || !*s2 || !*s3 || !*s4 || !*s5) {
fprintf(stderr, "Memory allocation failed!\n");
exit(EXIT_FAILURE);
}
// Copy initial content
strcpy(*s1, "Go");
strcpy(*s2, "Away ");
strcpy(*s3, "Run ");
strcpy(*s4, "Now");
strcpy(*s5, "Hurry ");
}
// Helper function to free strings (used in each part)
void free_strings(char *s1, char *s2, char *s3, char *s4, char *s5) {
free(s1);
free(s2);
free(s3);
free(s4);
free(s5);
}
A) using string concatenation output all the strings into a single statement
This code concatenates the five dynamically allocated strings into a new, larger dynamically allocated string and then prints the result.
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// (Include initialize_strings and free_strings helper functions here as defined above)
int main() {
char *str1, *str2, *str3, *str4, *str5;
initialize_strings(&str1, &str2, &str3, &str4, &str5);
// Calculate total length needed for the concatenated string
size_t total_len = strlen(str1) + strlen(str2) + strlen(str3) + strlen(str4) + strlen(str5);
char *concatenated_str = (char *)malloc(sizeof(char) * (total_len + 1)); // +1 for null terminator
if (concatenated_str == NULL) {
fprintf(stderr, "Memory allocation for concatenated string failed!\n");
free_strings(str1, str2, str3, str4, str5);
return EXIT_FAILURE;
}
// Initialize the concatenated string to be empty
concatenated_str[0] = '\0';
// Concatenate all strings
strcat(concatenated_str, str1);
strcat(concatenated_str, str2);
strcat(concatenated_str, str3);
strcat(concatenated_str, str4);
strcat(concatenated_str, str5);
printf("A) Concatenated statement: %s\n", concatenated_str);
// Free dynamically allocated memory
free(concatenated_str);
free_strings(str1, str2, str3, str4, str5);
return 0;
}
B) using string compare to reassign the content to the strings in alphabetical order
This code uses an array of char* pointers to hold the strings. It then sorts the content of these strings in alphabetical order using strcmp and strcpy with a temporary buffer for swapping.
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// (Include initialize_strings and free_strings helper functions here as defined above)
int main() {
char *str1, *str2, *str3, *str4, *str5;
initialize_strings(&str1, &str2, &str3, &str4, &str5);
// Create an array of pointers to the strings for easier sorting
char *strings[5] = {str1, str2, str3, str4, str5};
// Find the maximum length among the initial strings to create a temporary buffer for swapping
int max_len = 0;
for (int i = 0; i <