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Introduction To Python
Python is a widely-used, interpreted, object-oriented, and high-level programming language with dynamic semantics, used for general-purpose programming. It was created by Guido van Rossum, and first released on February 20, 1991.
Python is a computer programming language often used to build websites and software, automate tasks, and conduct data analysis. It is also used to create various machine learning algorithm, and helps in Artificial Intelligence. Python is a general purpose language, meaning it can be used to create a variety of different programs and isn’t specialized for any specific problems. This versatility, along with its beginner-friendliness, has made it one of the most-used programming languages today. A survey conducted by industry analyst firm RedMonk found that it was the most popular programming language among developers in 2020.
Link for the Problem – Python Evaluation – HackerRank Solution
Python Evaluation – HackerRank Solution
Problem:
The eval() expression is a very powerful built-in function of Python. It helps in evaluating an expression. The expression can be a Python statement, or a code object.
For Example :
>>> eval("9 + 5")
14
>>> x = 2
>>> eval("x + 3")
5
Here, eval() can also be used to work with Python keywords or defined functions and variables. These would normally be stored as strings.
For Example :
>>> type(eval("len"))
<type 'builtin_function_or_method'>
Without eval()
>>> type("len")
<type 'str'>
Task :
You are given an expression in a line. Read that line as a string variable, such as var, and print the result using eval(var).
NOTE: Python2 users, please import from __future__ import print_function.
Constraints :
Input string is less than 100 characters.
Sample Input :
print(2 + 3)
Sample Output :
5
Python Evaluation – HackerRank Solution
eval(input())
