du4

du4/program.c

@@ -0,0 +1,74 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define MAX_STUDENTS 100
+#define MAX_NAME_LEN 100
+#define MAX_LINE_LEN 150
+
+typedef struct{
+    char name[MAX_NAME_LEN];
+    int votes;
+} Student;
+
+int findStudent(Student students[], int count, const char *name){
+    for(int i = 0; i < count; i++){
+        if(strcmp(students[i].name, name) == 0){
+            return i;
+        }
+    }
+    return -1;
+}
+
+int compare(const void *a, const void *b){
+    Student *studentA = (Student *)a;
+    Student *studentB = (Student *)b;
+
+    if(studentB->votes != studentA->votes){
+        return studentB->votes - studentA->votes;
+    }
+    return strcmp(studentA->name, studentB->name);
+}
+
+int main(){
+    Student students[MAX_STUDENTS];
+    int student_count = 0;
+    char line[MAX_LINE_LEN];
+
+    int read_success = 0;
+
+    while(fgets(line, sizeof(line), stdin)){
+        int count;
+        char name[MAX_NAME_LEN];
+
+        if(sscanf(line, "%d %[^\n]", &count, name) != 2 || count < 0){
+            break;
+        }
+        read_success = 1;
+
+        int index = findStudent(students, student_count, name);
+        if(index != -1){
+            students[index].votes += count;
+        }else{
+            if(student_count < MAX_STUDENTS){
+                strcpy(students[student_count].name, name);
+                students[student_count].votes = count;
+                student_count++;
+            }
+        }
+    }
+
+    if (!read_success) {
+        printf("Chyba: Nepodarilo sa nacitat ziadne platne zaznamy.\n");
+        return 1;
+    }
+
+    qsort(students, student_count, sizeof(Student), compare);
+
+    printf("Vysledky:\n");
+    for(int i = 0; i < student_count; i++){
+        printf("%d %s\n", students[i].votes, students[i].name);
+    }
+
+    return 0;
+}