Initialization

cv10/program.c

@@ -2,61 +2,71 @@
 #include <stdlib.h>
 #include <string.h>
 
-// Function to compare strings for qsort
-int compare(const void *a, const void *b) {
+int compare_names(const void *a, const void *b) {
     return strcmp(*(const char **)a, *(const char **)b);
 }
 
 int main() {
-    int max_students;
-    char **applications = NULL;
+    int count;
     char buffer[100];
-    int num_applications = 0;
+    char **applications;
+    int i, j;
 
-    // Read the maximum number of students to accept
-    if (scanf("%d", &max_students) != 1 || max_students <= 0) {
-        puts("Nespravny vstup");
+    if (scanf("%d", &count) != 1 || count <= 0) {
+        printf("Nespravny vstup\n");
         return 1;
     }
 
-    // Allocate memory for the list of applications
-    applications = (char **)malloc(max_students * sizeof(char *));
-    if (applications == NULL) {
-        puts("Chyba alokacie pamate");
+    applications = (char **)malloc(count * sizeof(char *));
+    if (!applications) {
+        printf("Chyba pri alokacii pamate\n");
         return 1;
     }
 
-    // Read the applications
-    while (num_applications < max_students && fgets(buffer, sizeof(buffer), stdin) != NULL && buffer[0] != '\n') {
-        size_t len = strlen(buffer);
-        if (buffer[len - 1] == '\n') {
-            buffer[len - 1] = '\0'; // Remove the newline character
+    i = 0;
+    while (i < count && fgets(buffer, sizeof(buffer), stdin)) {
+        int len = strlen(buffer);
+        if (len > 0 && buffer[len - 1] == '\n') { // Remove newline character if present
+            buffer[len - 1] = '\0';
         }
-        applications[num_applications] = strdup(buffer);
-        if (applications[num_applications] == NULL) {
-            puts("Chyba alokacie pamate");
-            return 1;
+        int found = 0;
+        for (j = 0; j < i; j++) {
+            if (strcmp(applications[j], buffer) == 0) {
+                found = 1;
+                break;
+            }
+        }
+        if (!found) {
+            applications[i] = strdup(buffer);
+            i++;
         }
-        num_applications++;
     }
 
-    // Check if any applications were read
-    if (num_applications == 0) {
-        puts("Ziadne prihlasky");
+    if (i == 0) {
+        printf("Ziadne prihlasky\n");
         return 1;
     }
 
     // Sort the applications alphabetically
-    qsort(applications, num_applications, sizeof(char *), compare);
+    qsort(applications, i, sizeof(char *), compare_names);
 
-    // Print the accepted students
-    puts("Prijati studenti:");
-    for (int i = 0; i < num_applications; i++) {
-        printf("%s\n", applications[i]);
-        free(applications[i]); // Free memory for each application
+    printf("Prijati studenti:");
+    for (j = 0; j < i; j++) {
+        printf("%s\n", applications[j]);
     }
 
-    free(applications); // Free the array of applications
+    if (count < i) {
+        printf("Neprijati studenti:");
+        for (; j < i; j++) {
+            printf("%s\n", applications[j]);
+        }
+    }
+
+    // Free allocated memory
+    for (j = 0; j < i; j++) {
+        free(applications[j]);
+    }
+    free(applications);
 
     return 0;
 }