Update 'du6/program.c'

du6/program.c

@@ -1,62 +1,81 @@
-#include <stdio.h>
+include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
-
-#define MAX_STUDENTS 1000 // Maximum number of students
+#include <ctype.h>
 
 int main() {
-    int num_students, i;
-    char names[MAX_STUDENTS][101];
-    char name[101];
 
-    // Read the maximum number of students
-    if (scanf("%d", &num_students) != 1) {
-        puts("Nespravny vstup");
-        return 1;
-    }
-    if (num_students <= 0 || num_students > MAX_STUDENTS) {
-        puts("Nespravny vstup");
-        return 1;
-    }
+   char database[200][30];
+   char string[30];
+   int error = 0;
+   int count = 0;
+   int i = 0;
+   
+   memset(database, 0, sizeof(database));
+   memset(string, 0, 30);
+   char *r;
+   r = fgets(string, 1000, stdin);
+   if (r == NULL)
+      return 0;
+   sscanf(string, "%d", &count);
+   if(strlen(r) == 1 || count < 1) {
+      puts("Nespravny vstup");
+      return 0;
+   }
+   for (int c = 0; c < 30; c++) {
+      if (isalpha(r[c])) {
+         error = 1;
+         break;
+      }
+   }
+   if (error != 0) {
+      puts("Nespravny vstup");
+      return 0;
+   }
+   
 
-    // Read the list of applications
-    for (i = 0; i < MAX_STUDENTS; i++) {
-        if (fgets(name, 101, stdin) == NULL || strcmp(name, "\n") == 0) {
-            break; // Stop reading when encountering an empty line or EOF
-        }
-        name[strcspn(name, "\n")] = '\0'; // Remove the trailing newline character
-        strcpy(names[i], name); // Add the name to the list
-    }
+   while (strlen(r) > 1) {
+      memset(string, 0, 30);
+      r = fgets(string, 30, stdin);
+      if (r == NULL)
+         break;
+      error = 0;
+      for (int j = 0; j < 200; j++) {
 
-    if (i == 0) {
-        puts("Ziadne prihlasky");
-        return 1;
-    }
+         if (strcmp(database[j], string) == 0) {
+            error = 1;
+            break;
+         }
 
-    // Sort the list of names in alphabetical order
-    for (int j = 0; j < i - 1; j++) {
-        for (int k = j + 1; k < i; k++) {
-            if (strcmp(names[j], names[k]) > 0) {
-                char temp[101];
-                strcpy(temp, names[j]);
-                strcpy(names[j], names[k]);
-                strcpy(names[k], temp);
-            }
-        }
-    }
+      }
 
-    // Print the list of accepted students
-    puts("Prijati studenti:");
-    for (int j = 0; j < num_students && j < i; j++) {
-        printf("%s\n", names[j]);
-    }
+      if (error == 0 && strlen(r) > 1) {
+         strcpy(database[i], r);
+         i++;
+      }
 
-    // Print the list of rejected students
-    if (i > num_students) {
-        puts("Neprijati studenti:");
-        for (int j = num_students; j < i; j++) {
-            printf("%s\n", names[j]);
-        }
-    }
-
-    return 0;
+   }
+   if (i == 0) {
+   	puts("Ziadne prihlasky");
+	return 0;
+   }
+   for (int j = 0; j < i; j++) {
+      for (int k = 0; k < i; k++) {
+         if (strcmp(database[j], database[k]) < 0) {
+            char buffer[30];
+            //memset(buffer, 0, sizeof(buffer));
+            strcpy(buffer, database[j]);
+            strcpy(database[j], database[k]);
+            strcpy(database[k], buffer);
+         }
+      }
+   }
+   puts("Prijati studenti:");
+   for (int j = 0; j < i; j++) {
+      if (j == count) {
+         puts("Neprijati studenti:");
+      }
+      printf("%s", database[j]);
+   }
+   return 0;
 }