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du5/program.c

@@ -0,0 +1,87 @@
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
+#define SIZE 100
+
+struct student{
+    int votes;
+    char name[SIZE];
+};
+
+int search_index(int size, const struct student list[SIZE], const char student[SIZE]){
+    for(int x = 0; x < size; x++){
+        if(strcmp(list[x].name, student) == 0){
+            return x;
+        }
+    }
+
+    return -1;
+}
+
+int sort_by_votes(const void* p1, const void* p2){
+    struct student* student1 = (struct student*) p1;
+    struct student* student2 = (struct student*) p2;
+
+    if(student1->votes != student2->votes){
+        if(student1->votes < student2->votes){
+            return 1;
+        }else{
+            return -1;
+        }
+    }else{
+        return strcmp(student1->name, student2->name);
+    }
+}
+
+int main(){
+    int votes;
+    char name[SIZE];
+    char line[SIZE];
+    char *end;
+    int counter = 0;
+
+    struct student list[SIZE];
+
+    while(fgets(line, SIZE, stdin) != NULL){
+        if(line[0] == '\n' || !isdigit(line[0])){
+            break;
+        }
+
+        votes = strtol(line, &end, 10);
+
+        if(end[0] != ' ' || !isalpha(end[1])){
+            break;
+        }
+
+        if(end[strlen(end) - 1] == '\n'){
+            end[strlen(end) - 1] = '\0';
+        }
+
+        strcpy(name, end + 1);
+
+        int stud_index = search_index(counter, list, name);
+
+        if(stud_index == -1){
+            counter++;
+
+            list[counter - 1].votes = votes;
+            strcpy(list[counter - 1].name, name);
+        }else{
+            list[stud_index].votes += votes;
+        }
+    }
+
+    if(counter == 0){
+        printf("Nepodarilo sa nacitat ziaden vstup\n");
+        return 0;
+    }
+
+    qsort(list, counter, sizeof(list[0]), sort_by_votes);
+
+    printf("Vysledky:\n");
+
+    for(int x = 0; x < counter; x++){
+        printf("%d %s\n", list[x].votes, list[x].name);
+    }
+}