83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#define SIZE 100
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struct student {
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char name[SIZE];
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int votes;
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};
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// Funkcia pre porovnanie dvoch študentov pri triedení
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int compare(const void* p1, const void* p2) {
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const struct student* s1 = (const struct student*)p1;
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const struct student* s2 = (const struct student*)p2;
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// Porovnanie podľa počtu hlasov
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return s2->votes - s1->votes;
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}
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// Funkcia na vyhľadanie študenta v databáze
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int find_student(struct student* students, int size, const char* name) {
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for (int i = 0; i < size; i++) {
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if (strcmp(students[i].name, name) == 0) {
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return i; // Nájdený študent
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}
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}
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return -1; // Študent nenájdený
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}
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int main() {
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struct student database[SIZE];
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memset(database, 0, SIZE * sizeof(struct student));
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int size = 0;
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char line[SIZE];
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char name[SIZE];
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int votes;
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while (1) {
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fgets(line, SIZE, stdin);
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// Kontrola ukončenia vstupu
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if (strcmp(line, "q\n") == 0 || strcmp(line, "Q\n") == 0) {
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break;
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}
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// Načítanie mena a počtu hlasov zo vstupu
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if (sscanf(line, "%s %d", name, &votes) != 2) {
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printf("Invalid input. Please try again.\n");
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continue;
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}
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// Vyhľadanie študenta v databáze
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int index = find_student(database, size, name);
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if (index == -1) {
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// Študent nenájdený, pridáme ho do databázy
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if (size < SIZE) {
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strcpy(database[size].name, name);
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database[size].votes = votes;
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size++;
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} else {
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printf("Database is full.\n");
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}
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} else {
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// Študent nájdený, zvýšime počet hlasov
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database[index].votes += votes;
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}
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}
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// Triedenie databázy podľa počtu hlasov
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qsort(database, size, sizeof(struct student), compare);
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// Výpis triedenej databázy
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printf("\nSorted database:\n");
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for (int i = 0; i < size; i++) {
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printf("%d %s\n", database[i].votes, database[i].name);
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}
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return 0;
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}
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