123

cv5/program.c

@@ -0,0 +1,88 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#define SIZE 100
+struct student {
+    char name[SIZE];
+    int votes;
+};
+
+int find_student(struct student* students,int size, const char* name){
+    for(int i = 0;i < size; i++){
+        if (strcmp(students[i].name, name) == 0) {
+            return i;
+        }
+    }
+    return -1;
+}
+
+int compare_votes (const void* p1, const void* p2)
+{
+    struct student* s1 = (struct student*)p1;
+    struct student* s2 = (struct student*)p2;
+    return (s2->votes - s1->votes);
+}
+
+int compare_names (const void* p1, const void* p2)
+{
+    struct student* s1 = (struct student*)p1;
+    struct student* s2 = (struct student*)p2;
+    return strcmp(s1->name,s2->name);
+}
+
+int main(){
+    int counter = 0;
+    char name[SIZE];
+    memset(name,0,SIZE);
+    char line[SIZE];
+    memset(line,0,SIZE);    
+    struct student databaza[SIZE];
+    memset(databaza,0,SIZE*sizeof(struct student));
+    int size = 0;   
+    while(fgets(line,SIZE,stdin) && line[0] != '\n'){
+        memset(name,0,SIZE);
+        if(line == NULL){
+            break;
+        }
+        char* end = NULL;
+        int value = strtol(line,&end,10);
+        char* zaciatok_mena = end + 1;
+        if (value == 0){
+            break;
+        }
+        int velkost_mena = strlen(zaciatok_mena) - 1;
+        if (velkost_mena > 0){
+            memcpy(name,zaciatok_mena,velkost_mena);
+        }
+        else{
+            printf("nepodarilo sa nacitat meno\n");
+            return 0;
+        }
+        int id = find_student(databaza,size,name);
+        if (id< 0){
+            memcpy(databaza[counter].name,name,velkost_mena); 
+            databaza[counter].votes = value;
+            size++;
+        }
+        else {
+            memset(databaza[counter].name,0,velkost_mena);
+            databaza[id].votes = databaza[id].votes + value;
+            size++;
+        }
+        counter++;
+    }
+    counter--;
+    qsort(databaza, size, sizeof(struct student), compare_names);
+    qsort(databaza, size, sizeof(struct student), compare_votes);
+    
+    if(databaza[0].votes == 0)
+        printf("Nepodarilo nacitat nic\n");
+    else
+        printf("Vysledky:\n");
+    for(int i = 0; i < size; i++) {
+        if(databaza[i].votes != 0)
+            printf("%d %s\n", databaza[i].votes, databaza[i].name);
+    }
+    return 0;
+ }