# include & lt; Stdio. H>
# include & lt; Stdlib. H>
# include & lt; String. H>

Struct film {
Char title [45].
Int rating;
Struct file * next;
};

Char * s_gets (char * st, int n);

Int main (void)
{
Struct film * head=NULL;
Prev struct film * and * current;
Char input [45].

Puts (" enter first name ");
While (s_gets (45) input, & amp; & Input [0]!='\ 0') {
The current=(struct film *) malloc (sizeof (struct film));
Prev=(struct) film * malloc (sizeof (struct film));
If (head==NULL)
The head=current;
The else
Prev - & gt; Next=current;
Current - & gt; Next=NULL;
Strcpy_s (current - & gt; The title, 45, input);
Puts (" enter first rating ");
Scanf_s (" % d ", & amp; Current - & gt; Rating);
While (getchar ()! )
='\ n'continue;
Puts (" enter next ");
Prev=current;
}
If (head==NULL)
Puts (" there is no moive ");
The else
Puts (" there is a movie list ");
The current=head;
While (current!=NULL) {
Printf (" % s, % d ", current - & gt; The title, the current - & gt; Rating);
The current=current - & gt; next;
}
The current=head;
While (current!=NULL) {
Free (current);
The head=current - & gt; next;
}
return 0;
}




Char * s_gets (char * st, int n) {
Char * ret_val;
Char * find;

int i=0;

Ret_val=the fgets (st, n, stdin);//below is done already input shown in the content of the
If (ret_val) {//the fgets didn't read the file at the end or read
The find=STRCHR (st, '\ n');
If (find)
{
* find='\ 0';
}
The else
While (getchar ()! )
='\ n'continue;
}
Return ret_val;
}

CodePudding user response:

Memory leaks:

 while (current!=NULL) {
Free (current); 
The current=current - & gt; next; 
} 

CodePudding user response:

And the pre pointer also need not allocate space, should be commented out

//prev=(struct film *) malloc (sizeof (struct film)); 

CodePudding user response:

 # include & lt; Stdio. H> 
# include & lt; Stdlib. H> 
# include & lt; String. H> 

Struct film {
Char title [45]. 
Int rating; 
Struct file * next; 
}; 

Char * s_gets (char * st, int n); 

Int main (void) 
{
Struct film * head=NULL; 
Prev struct film * and * current; 
Char input [45]. 

Puts (" enter first name "); 
While (s_gets (45) input, & amp; & Input [0]!='\ 0') {
The current=(struct film *) malloc (sizeof (struct film)); 
//prev=(struct) film * malloc (sizeof (struct film)); 
If (head==NULL) 
The head=current; 
The else 
Prev - & gt; Next=current; 
Current - & gt; Next=NULL; 
Strcpy (current - & gt; The title, input); 
Puts (" enter first rating "); 
The scanf (" % d ", & amp; Current - & gt; Rating); 
While (getchar ()! ) 
='\ n'continue; 
Puts (" enter next "); 
Prev=current; 
} 
If (head==NULL) 
Puts (" there is no moive "); 
The else 
Puts (" there is a movie list "); 
The current=head; 
While (current!=NULL) {
Printf (" % s, % d \ n ", current - & gt; The title, the current - & gt; Rating); 
The current=current - & gt; next; 
} 
The current=head; 
While (current!=NULL) {
Free (current); 
The current=current - & gt; next; 
} 
return 0; 
} 


Char * s_gets (char * st, int n) {
Char * ret_val; 
Char * find; 

int i=0; 

Ret_val=the fgets (st, n, stdin);//below is done already input shown in the content of the 
If (ret_val) {//the fgets didn't read the file at the end or read 
The find=STRCHR (st, '\ n'); 
If (find) 
{
* find='\ 0'; 
} 
The else 
While (getchar ()! ) 
='\ n'continue; 
} 
Return ret_val; 
}