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| #include <stdio.h>
#include <stdlib.h>
#include "list.h"
struct obj *head = NULL, *tail = NULL;
struct obj* add_obj(char* Name,int Group, int exam, char pass)
{
int i;
struct obj * current =(struct obj *)malloc(sizeof(struct obj));
current-> S.Name=Name;
current->S.Group=Group;
for (i = 0; i < 3; i++)
current-> S.exam[i]=exam;
for (i = 0; i < 3; i++)
current-> S.pass[i]=pass;
current->prev = tail;
current->next = NULL;
if(tail != NULL) tail->next = current;
if(head == NULL) head = current;
tail = current;
return current;
}
void Input() // ââîä íîâîãî ýëåìåíòà ñ êëàâèàòóðû
{
struct student S ;
int i;
S.Name = 0;
S.Group = 0;
printf("Input Surname\n");
S.Name = (char*)malloc(sizeof(char)* 20);
scanf("%s", S.Name);
getchar();
printf("Input number group\n");
scanf("%d", &(S.Group));
getchar();
for (i = 0; i < 3; i++)
{
printf("Input the estimate for %d exam\n", i+1);
scanf("%d", &(S.exam[i]));
getchar();
}
for (i = 0; i < 3; i++)
{
printf("Input the estimate for %d setoff\n", i+1);
scanf("%s", &(S.pass[i]));
getchar();
}
add_obj(S.Name,S.Group,S.exam[i], S.pass[i]);
}
void del_obj(char* Namedel)
{
struct obj * current =(struct obj *)malloc(sizeof(struct obj));
current=head;
while (current!=NULL)
{
if (strcmp(Namedel,current->S.Name)==0)
{
if(current == head)
if(current->prev != NULL) head = current->prev;
else head = current->next;
if(current == tail)
if(current->next != NULL) tail = current->next;
else tail = current->prev;
if(current->prev != NULL)
current->prev->next = current->next;
if(current->next != NULL)
current->next->prev = current->prev;
free(current);
}
current = current->next;
}}
void PrintList() //ïå÷àòü ñïèñêà
{int i;
printf("%-10s","Surname");
printf("%-10s","Group");
printf("%-10s","Exams");
printf("%-10s","Setoff\n");
struct obj *p = head;
while (p != NULL)
{
printf("\n");
printf("%-10s", (p->S).Name);
printf("%-10d", (p->S).Group);
for ( i = 0; i < 3; i++)
printf("%-2d", (p->S).exam[i]);
for ( i = 0; i < 3; i++)
printf("%-2c", (p->S).pass[i]);
p = p->next;
}
printf("\n");
}
void PrintNames()// ïå÷àòü èíôîðìàöèè î íåóñïåâàþùèõ ñòóäåíòàõ
{
struct obj *i = head;
printf("%s", "Surname");
printf("%s", "Group");
printf("Kol-vo zadolznostei\n");
while (i != NULL)
{
int j = 0;
int n = 0;
for (j = 0; j<3; j++)
{
if ((i->S).exam[j] == 2) n++;
if ((i->S).pass[j] == 'n') n++;
}
if (n > 0)
{
printf("%s", (i->S).Name);
printf("%d", (i->S).Group);
printf("%d\n", n);
}
i = i->next;
}
}
void PrintBall(int X) // ïå÷àòü ñðåäíåãî áàëëà ïî ãðóïïå x
{
int s = 0;
struct obj *i = head;
float sr = 0;
int n = 0;
while (i != NULL)
{
if ((i->S).Group > X) break;
if ((i->S).Group == X)
{
printf("%s", (i->S).Name);
float s = 0;
int j;
for ( j = 0; j < 3; j++)
{
s = s + (i->S).exam[j];
}
s = s / 3;
printf("%f\n", s);
sr = sr + s;
n++;
}
i = i->next;
}
printf("\nSredniy bal po groupe %d = ", X);
if (n != 0)
{
sr = sr / n;
}
printf("%f\n", sr);
} |
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