#include<stdio.h>
#define n 5
int top=-1;
int stack[n],choice,x,i;
void push(void);
void pop(void);
void display(void);
int main()
{ printf("\nSTACK OPERATIONS USING ARRAY");
printf("\n--------------------------------");
printf("\n 1.PUSH\n 2.POP\n 3.DISPLAY\n 4.EXIT");
do
{ printf("\n Enter the Choice:");
scanf("%d",&choice);
switch(choice)
{ case 1: { push(); break; }
case 2: { pop(); break; }
case 3: { display(); break; }
case 4: { printf("\n\t EXIT POINT "); break; }
default: { printf ("\n\t Please Enter a Valid Choice(1/2/3/4)"); }
}
}while(choice!=4);
return 0;
}
void push()
{ if(top>=n-1)
{ printf("\n\tSTACK is over flow");
}
else
{ printf(" Enter a value to be pushed:");
scanf("%d",&x);
top++;
stack[top]=x;
}
}
void pop()
{ if(top<=-1)
{ printf("\n\t Stack is under flow");
}
else
{ printf("\n\t The popped elements is %d",stack[top]);
top--;
}
}
void display()
{ if(top>=0)
{ printf("\n The elements in STACK \n");
for(i=top; i>=0; i--)
printf("\n%d",stack[i]);
printf("\n Press Next Choice");
}
else
{ printf("\n The STACK is empty");
}
}
Output:
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