80 lines
2.1 KiB
C
80 lines
2.1 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
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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 počtu hlasov
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if (s1->votes != s2->votes) {
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return s2->votes - s1->votes; // Zoradenie zostupne podla poctu hlasov
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} else {
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// Ak maju rovnaky pocet hlasov, zoradime lexikograficky podla mena
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return strcmp(s1->name, s2->name);
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}
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}
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// Funkcia na hladanie studenta v databaze
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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; // Student najdeny
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}
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}
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return -1; // Student nenajdeny
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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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while (fgets(line, SIZE, stdin) != NULL) {
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int votes;
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char name[SIZE];
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// Nacitanie hlasov a mena
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if (sscanf(line, "%d %[^\n]", &votes, name) != 2) {
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fprintf(stderr, "Chyba pri citani riadku: %s", line);
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return 1;
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}
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// Hladanie studenta v databaze
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int idx = find_student(database, size, name);
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if (idx == -1) {
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// Student nie je v databaze, pridame ho
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if (size >= SIZE) {
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fprintf(stderr, "Prekroceny limit databazy\n");
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return 1;
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}
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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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// Student je v databaze, pripocitame hlasy
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database[idx].votes += votes;
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}
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}
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// Zoradenie databazy
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qsort(database, size, sizeof(struct student), compare);
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// Vypis databazy
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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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