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Create stack_using_array.c #6

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68 changes: 68 additions & 0 deletions Arrays/stack_using_array.c
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Original file line number Diff line number Diff line change
@@ -0,0 +1,68 @@
//stack using array
#include<stdio.h>
#include<stdlib.h>
struct stack
{
int size;
int top;
int *s;
};
void create(struct stack *st)
{
printf("Enter the size of stack: ");
scanf("%d",&st->size);
st->top=-1;
st->s=(int *)malloc(st->size*sizeof(int));
}
void display(struct stack st)
{
int i;
for(i=st.top;i>=0;i--)
printf("%d ",st.s[i]);
printf("\n");
}
void push(struct stack *st,int x)
{
if(st->top==st->size-1)
printf("Stack overflow\n");
else
{
st->top++;
st->s[st->top]=x;
}
}
int pop(struct stack *st)
{
int x=-1;
if(st->top==-1)
printf("\nStack Underflow\n");
else
{
x=st->s[st->top];
st->top--;
}
return x;
}

int main()
{
struct stack st;
create(&st);
push(&st,10);
push(&st,20);
push(&st,30);
push(&st,40);
push(&st,50);
push(&st,60);
push(&st,70);
push(&st,80);
push(&st,90);
push(&st,100);
display(st);
printf("\n");
printf("Deleted is:%d\n",pop(&st));
printf("Deleted is:%d\n",pop(&st));
printf("\n-----After Deletion-----\n");
display(st);
}