submit1

cv5/program.c

@@ -0,0 +1,100 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#define SIZE 100
+
+struct student {
+    char name[SIZE];
+    int score;
+};
+ int compar(const void*,const void*);
+
+int main()
+{
+    struct student databaza[SIZE];
+    memset(databaza,0,SIZE*sizeof(struct student));
+    int size = 0;
+    while(loading_the_entire_line_from_standard_input_into_the_helper_field_and_verify_that_i_have_loaded_it_correctly(databaza,&size)){
+    }
+    int element_size=SIZE+sizeof(int);
+    qsort((void *)databaza, size,element_size,compar);
+    for(int i=0; i<size; i++){
+        printf("%d, %s\n",databaza[i].score,databaza[i].name);
+    }
+
+    return 0;
+}
+
+
+
+int loading_the_entire_line_from_standard_input_into_the_helper_field_and_verify_that_i_have_loaded_it_correctly(struct student *databaza,int *size_ptr){
+    char line[SIZE];
+    memset(line,0,SIZE);
+    char* r = fgets(line,SIZE,stdin);
+    if (r == NULL){
+        return 0;
+    }
+    parce_line_and_save_into_database(line,databaza,size_ptr);
+    return 1;
+}
+void parce_line_and_save_into_database(char line[],struct student *databaza, int *size_ptr){
+    char* end = NULL;
+    int score=retriving_integer(line,&end);
+    if(score==0){
+        return;
+    }
+    char name[SIZE];
+    memset(name,0,SIZE);
+    end += 1;
+    int velkost_mena = strlen(end) - 1;
+    if (velkost_mena > 0){
+        memcpy(name,end,velkost_mena);
+    }
+    else {
+        return;
+    }
+    adding_an_item_to_the_database( databaza, size_ptr, name, score);
+}
+
+int retriving_integer(char *line,char** end){
+
+    int value = strtol(line,end,10);
+    if (value == 0){
+        return 0;
+    }
+    return value;
+}
+int find_index(struct student databaza[],int size, const char *xxx){
+        for(int i=0; i<size; i++){
+            if(strcmp(databaza[i].name,xxx)==0){
+                return i;
+            }
+        }
+    return -1;
+}
+
+void adding_an_item_to_the_database(struct student databaza[],int *size_ptr, const char* name,int score){
+    int size_of_Name= strlen(name);
+    int id = find_index(databaza,*size_ptr,name);
+    if (id< 0){
+        memcpy(databaza[*size_ptr].name,name,size_of_Name);
+        databaza[*size_ptr].score=score;
+        *size_ptr+=1;
+    }else {
+        databaza[id].score+=score;
+    }
+}
+int compar(const void* a,const void* b){
+    struct student * a_ptr = a;
+    struct student * b_ptr = b;
+    if(a_ptr->score < b_ptr->score) {
+        return 1;
+    }
+    if(b_ptr->score > a_ptr->score) {
+        return -1;
+    }
+    if(a_ptr->score == b_ptr->score){
+        return strcmp(a_ptr->name, b_ptr->name);
+    }
+}
+