C program to perform push,pop and show in a Multiple Stack.
#define MAX 10
#include
#include
int stack[MAX],topA=-1,topB=MAX;
void pushA(int no)
{
if(topA==topB)
{
printf("\n OVERFLOW");
return;
}
stack[++(topA)]=no;
}
int popA()
{
if(topA==-1)
{
printf("\n UNDERFLOW");
return -999;
}
return stack[(topA)--];
}
void showA()
{
int i;
if(topA==-1)
{
printf("\n stack Empty");
return;
}
for(i=topA;i>=0;i--)
{
printf("\n %d",stack[i]);
}
}
void pushB(int no)
{
if(topB-1==topA)
{
printf("\n OVERFLOW");
return;
}
stack[--(topB)]=no;
}
int popB()
{
if(topB==MAX)
{
printf("\n UNDERFLOW");
return -999;
}
return stack[(topB)--];
}
void showB()
{
int i;
if(topB==MAX)
{
printf("\n stack Empty");
return;
}
for(i=topB;i{
printf("\n %d",stack[i]);
}
}
void main()
{
clrscr();
int ch,val;
do
{
printf("\n\n\n 1 PUSH A");
printf("\n 2 PUSH B");
printf("\n 3 POP A");
printf("\n 4 POP B");
printf("\n 5 Show A");
printf("\n 6 Show B");
printf("\n 0 EXIT");
printf("\nENter your CHoice");
scanf("%d",&ch);
switch(ch)
{
case 1:printf("\n enter Number");
scanf("%d",&val);
pushA(val);
break;
case 2: printf("\n enter Number");
scanf("%d",&val);
pushB(val);
break;
case 3: val=popA();
if(val!=-999)
printf("%d popped",val);
break;
case 4 : val=popB();
if(val!=-999)
printf("%d popped",val);
break;
case 5: showA();
break;
case 6: showB();
break;
case 0:break;
default:printf("\n Invalid choice");
}
}while(ch!=0);
getch();
}
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