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Completing and extending the C++ program that evaluates statements of an expression language.
The statements of that expression language consist of an arithmetic expression followed by a list of assignments. Assignments are separated from the expression and each other by commas. A semicolon terminates the expression. The arithmetic expressions are fully parenthesized infix expressions containing integer literals and variables. The valid arithmetic operators are +, -, *, /. Tokens can be separated by any number of spaces. Variable names begin with an alphabetic character, followed by any number of alphanumeric characters. Variable names are case sensitive. This syntax is described by BNF and regular expressions in the case study. The program reads in the arithmetic expression and encodes the expression as a binary tree. After the expression has been read in, the variable assignments are read in and the variables and their values of the variables are placed into the symbol table. Finally the expression is evaluated recursively. Your first task is to complete the program provided by providing the three missing classes, Minus, Times and Divide. Next, you should extend the program so that it supports relational, logical and conditional expression operators as defined by the following extension to the grammar: -> '(' ')' | '(' ':' '?' ')' | '(' '!' ')' -> '+' | '-' | '*' | '/' | '>' | '<' | '=' | '&' | '|' Note that there are a few differences in the use of these operators compared to their customary use in the C family of languages. In the conditional expression operator the symbols are reversed and the third operand represents the condition. The first operand is the value when true and the second the value when false The logical operators use single symbols not double, for example the and operator is & not && The negation operator ! is a postfix operator, not a prefix one There are only three relational operators not the usual six and the operator for equality is = not == Like C and C++, any arithmetic expression can be interpreted as a logical value, taking 0 as false and anything else as true Your final task is to make the following two modifications to the program: The program should accept input from a file, allowing for multiple expressions arranged one per line. Some hints for accomplishing this transformation will be provided in the conference All results should be changed from double to int. In particular the evaluate function should return an int.
write a program that will calculate the heat transfer of a substance (water) given three different shapes. The user has to be able to input the type of shape, so that the computer can calculate area, and plug it back in to the equation for heat trans..
How do you get this program to get both player input and then display results(As described on bottom) #include const int NUM_YEARS=15;//The number of years const int NAME_SIZE=32;//The max size of the player name string
Write down the program which reads from file numbers.txt 30 integers in range 0 - 200. Program then determines number of integers in each of given ranges.
You will create a linked list module that exactly meets the specifications given in the supplied header (.h) file. The playlist program must accept a filename on the command line (argv).
Write C or C++ program which Randomly generates more than 10 IP addresses written in decimal format and write results in text file (e.g. Dec_IPAddresses.txt)
Define a structure to store roll no, name and marks of a student - using the structure of Q2. a), above write a 'C' program to create a file "student.dat". There must be one record for every student in the file.
Write a C++ program that prompts the user for a double that is either positive or negative.
Modify the following program so it performs a binary search instead of a linear search. Use the selection sort algorithm to sort the array before the binary search is performed.
Design a C++ program that will interactively prompt for and read the name of the input file interactively prompt for and read the name of a file to write the output of the program to write the following to the specified output file your name, sect..
In this assignment, you write C++ programs that compute the agreement for two given vectors (see Calculation 1 above). In these programs, in vectors A and B only nonzero elements (elements that are 1) are stored. We give you a function that gen..
Write program which uses the following arrays: payRate: array of seven floats to hold each employee's hourly pay rate. wages: array of seven floats to hold each employee's gross wages.
Search for the value needle in the array range given by [hay_begin ... hay_end), using the Linear Search algorithm. This function will return a pointer to the needle value if it is found, or a null pointer if needle is not found.
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