data structures lab programs

1. WAP to construct a stack of
   integers using an array and to perform the following operations on it
   
    a) Push
   
    b) Pop
   
    c) Display
   
   The program should print appropriate messages for stack overflow and
   stack underflow .
2. WAP to convert a given valid
   parenthesized infix arithmetic expression to postfix expression. The expression
   consists of single character operands and the binary operators + (plus), -
   (minus), * (multiply) and / (divide).
3. WAP to simulate the working of
   a queue of integers using an array. Provide the following operations
   
   a) Insert
   
   b) Delete
   
   c) Display
   
   The program should print appropriate messages for queue empty and
   queue overflow conditions
   
   
   
   
   
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