Q1. Consider the program below.

• Fill in the blank at LINE-1 to declare a stack variable st.
• Fill in the blank at LINE-2 to push values into the stack.
• Fill in the blank at LINE-3 with the appropriate statement.
  The program must satisfy the given test cases.

Code:-

Q2. Consider the following program.

• Fill in the blank at LINE-1 with the appropriate if statement,

• Fill in the blank at LINE-2 and LINE-3 with the appropriate return statements.

The program must satisfy the sample input and output.

Code:-

Q3.

Code:-