what is error in below code ?
#includeThis is a snippet of code which accepts two arrays initial and target and 'm' operations in the form of R X and L X where L X is for left rotation by 1 and R X is for right rotation by 1 ,we have to output the no of operations after which initial and target array both are same , I created queues where head1 and head2 are pointers to front nodes of initial and target arrays , Now the issue is that after I scan the first operation , it stops working ,please tell the point where I am making mistake .#include struct node { int data ; struct node *next,*prev; }; int main() { int n ,m,a,count=0,i,j; char rot; scanf("%d",&n); fflush(stdin); scanf("%d",&m); fflush(stdin); printf("\n"); struct node *head1=NULL,*rear1,*ptr,*temp,*head2=NULL,*rear2; if(head1==NULL) { temp=(struct node*)malloc(sizeof(struct node)); scanf("%d ",temp->data); temp->next=NULL; head1=temp; ptr=head1; head1->prev=NULL; } for(i=1;i<=n-1;i++) { temp=(struct node*)malloc(sizeof(struct node)); scanf("%d ",temp->data); ptr->next=temp; temp->prev=ptr; ptr=temp; } rear1=ptr; temp=NULL; ptr=NULL; printf("\n"); if(head2==NULL) { temp=(struct node*)malloc(sizeof(struct node)); scanf("%d ",temp->data); temp->next=NULL; head2=temp; ptr=head2; } for(i=1;i<=n-1;i++) { temp=(struct node*)malloc(sizeof(struct node)); scanf("%d ",temp->data); ptr->next=temp; ptr=temp; ptr->next=NULL; } rear2=ptr; ptr=NULL;temp=NULL; printf("\n"); for(i=0;i next; rear1->next=ptr; rear1=ptr; head1=temp; ptr=head1; } count++; ptr=NULL; temp=NULL; if(head1->data==head2->data && rear1->data==rear2->data) { break; } } else if(rot=='R') { temp=head1; ptr=rear1->prev; for(j=0;jprev=rear1; rear1->prev->next=NULL; rear1->next=temp; head1=rear1; temp=head1; rear1=ptr; ptr=rear1->prev; } count++; temp=NULL; ptr=NULL; printf("\n"); if(head1->data==head2->data && rear1->data==rear2->data) { break; } } } printf("%d",count); return 0; }
}
Replies
-
aishwarya mkin scanf function u mis the "&" symbol u check once
in the line scanf("%d",&header1->data);
because data is integer data type -
brahmaasthra#include
#include
struct node
{
int data ;
struct node *next,*prev;
};
int main()
{
int n ,m,a,count=0,i,j;
char rot;
scanf("%d",&n);
fflush(stdin);
scanf("%d",&m);
fflush(stdin);
printf("\n");
struct node *head1=NULL,*rear1,*ptr,*temp,*head2=NULL,*rear2;
if(head1==NULL)
{
int inp;
temp=(struct node*)malloc(sizeof(struct node));
scanf("%d ",&inp);
temp->data=inp;
temp->next=NULL;
head1=temp;
ptr=head1;
head1->prev=NULL;
}
for(i=1;i<=n-1;i++)
{
int inp;
temp=(struct node*)malloc(sizeof(struct node));
scanf("%d ",&inp);
temp->data=inp;
ptr->next=temp;
temp->prev=ptr;
ptr=temp;
}
rear1=ptr;
temp=NULL;
ptr=NULL;
printf("\n");
if(head2==NULL)
{
int inp;
temp=(struct node*)malloc(sizeof(struct node));
scanf("%d ",&inp);
temp->data=inp;
temp->next=NULL;
head2=temp;
ptr=head2;
}
for(i=1;i<=n-1;i++)
{
int inp;
temp=(struct node*)malloc(sizeof(struct node));
scanf("%d ",&inp);
temp->data=inp;
ptr->next=temp;
ptr=temp;
ptr->next=NULL;
}
rear2=ptr;
ptr=NULL;temp=NULL;
printf("\n");
for(i=0;i{
scanf("%c %d",&rot,&a);
fflush(stdin);
if(rot=='L')
{
ptr=head1;
for(j=0;j {
temp=ptr->next;
rear1->next=ptr;
rear1=ptr;
head1=temp;
ptr=head1;
}
count++;
ptr=NULL;
temp=NULL;
if(head1->data==head2->data && rear1->data==rear2->data)
{
break;
}
}
else if(rot=='R')
{
temp=head1;
ptr=rear1->prev;
for(j=0;j {
temp->prev=rear1;
rear1->prev->next=NULL;
rear1->next=temp;
head1=rear1;
temp=head1;
rear1=ptr;
ptr=rear1->prev;
}
count++;
temp=NULL;
ptr=NULL;
printf("\n");
if(head1->data==head2->data && rear1->data==rear2->data)
{
break;
}
}
}
printf("%d",count);
return 0;
} -
brahmaasthracopy and run this program and tell. Whether it works well?
-
Vishal Sharma#-Link-Snipped-# No one asked you the entire code
-
aishwarya mkscanf("%d ",temp->data);
for structure also u should specifies te data qualifiers
You are reading an archived discussion.
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