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plurals

POPushing values to a Stack from a Queue
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16836682
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2013-05-30T12:48:44.200
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2013-05-31T00:57:33.347
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2013-05-30T13:25:05.437
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Body
I am trying to push values in to a stack using a queue, but the thing is am not getting any pop from the stack( No output). Here is what i have done : <pre><code>#include<stdio.h> #include<malloc.h> #include<conio.h> #define MAX 180 #define TRUE 1 #define FALSE 0 struct cakes { int spongecake; int meringue; int chocalate; int red_velvet; struct cakes *next; }; struct stack{ int top; int cake[10]; }; struct Queue{ int front; int rear; int count; int cake[10]; }; void conveyer_order(struct cakes *); void baking_order(struct cakes *); int isFull(struct stack *); int isEmpty(struct stack *); void push(struct stack *,int); int pop(struct stack *); void init(struct Queue *); int isqueueFull(struct Queue*); void insert(struct Queue*,int); int isqueueEmpty(struct Queue *); int removes(struct Queue *); main() { struct cakes *head; head=(struct cakes *)malloc(sizeof(struct cakes)); conveyer_order(head); head->next=(struct cakes *)malloc(sizeof(struct cakes)); baking_order(head->next); } int isFull(struct stack *k) { if(k->top==10-1) { return TRUE; } else { return FALSE; } } int isEmpty(struct stack *k) { if(k->top==-1) { return TRUE; } else { return FALSE; } } int pop(struct stack *sptr) { int ret=NULL; if(!isEmpty(sptr)) { ret=sptr->cake[sptr->top]; sptr->top--; return ret; } } void push(struct stack *sptr,int x) { if(!isFull(sptr)) { sptr->top++; sptr->cake[sptr->top]=x; } } void init(struct Queue *q) { q->front=0; q->rear=10-1; q->count=0; } int isqueueFull(struct Queue *q) { if(q->count==10) { return 1; } else { return 0; } } void insert(struct Queue *q,int x) { if(!isqueueFull(q)) { q->rear=(q->rear+1)%10; q->cake[q->rear]=x; q->count++; } } int isqueueEmpty(struct Queue *q) { if(q->count==0) { return 1; } else { return 0; } } int removes(struct Queue *q) { int cakeempty=NULL; if(!isqueueEmpty(q)) { cakeempty=q->cake[q->front]; q->front=(q->front+1)%10; q->count--; return cakeempty; } } void baking_order(struct cakes *theorder) { int v=0; struct stack baking; struct Queue belt; baking.top=-1; int value1=0; int value2=0; theorder->spongecake=20; theorder->chocalate=40; theorder->red_velvet=30; theorder->meringue=75; init(&belt); while(!isqueueFull(&belt)) { insert(&belt,theorder->meringue); insert(&belt,theorder->chocalate); insert(&belt,theorder->red_velvet); insert(&belt,(theorder->spongecake)); } value1=removes(&belt); while(!isqueueEmpty(&belt)) { while(!isFull(&baking)) { value2=removes(&belt); if(value1>=value2) { push(&baking,value2); value1=value2; } else { insert(&belt,value2); } } } while(!isEmpty(&baking)) { printf("\n%d",pop(&baking)); } } </code></pre> I tried printing the values without passing in to the stack and it works , i think the problem is with the 2 while loops. How can i fix this error ? Thank you for your time.
Tags
<c><while-loop><queue><stack>
Title
Pushing values to a Stack from a Queue
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