Jayashree has Published 93 Answers

What is the difference between ++i and i++ in c?

Jayashree
Jayashree
Published on 24-Apr-2018 20:11:56
In C, ++ and -- operators are called increment and decrement operators. They are unary operators needing only one operand. Hence ++ as well as -- operator can appear before or after the operand with same effect. That means both i++ and ++i will be equivalent.i=5; i++; printf("%d", i);and i=5 ++i; printf("%d", ... Read More

Print a list in Python

Jayashree
Jayashree
Published on 24-Apr-2018 19:45:39
List is a sequence of elements. Any element in the sequence is accessible by its position in sequence. The index starts with 0. Hence list[2] will return element at index 2, the third in the list i.e. 50.

Python: Cannot understand why the error - cannot concatenate 'str' and 'int' object ?

Jayashree
Jayashree
Published on 24-Apr-2018 19:38:19
This can be corrected by putting n+1 in brackets i.e. (n+1)for num in range(5):     print ("%d" % (num+1))Using %d casts the object following % to string. Since a string object can't be concatnated with a number (1 in this case) interpreter displays typeerror.

How to Find HCF or GCD using Python?

Jayashree
Jayashree
Published on 07-Mar-2018 00:50:50
Highest Common Factor or Greatest Common Divisor of two or more integers is the largest positive integer that evenly divides the numbers without a remainder. For example, the GCD of 8 and 12 is 4.x = int(input("Enter first number: "))   y = int(input("Enter second number: "))   if x ... Read More

How to create Ordered dictionaries in Python?

Jayashree
Jayashree
Published on 07-Mar-2018 00:40:06
An OrderedDict is a dictionary subclass that remembers the order in which its contents are added, It is defined in collections module of Python library. OrderDict remembers the order of addition of key-value pairs in a dictionary>>> from collections import OrderedDict >>> od=OrderedDict(d.items()) >>> od OrderedDict([('banana', 3), ('apple', 4), ('pear', ... Read More

What are Ordered dictionaries in Python?

Jayashree
Jayashree
Published on 07-Mar-2018 00:35:42
An OrderedDict is a dictionary subclass that remembers the order in which its contents are added, supporting the usual dict methods.If a new entry overwrites an existing entry, the original insertion position is left unchanged. Deleting an entry and reinserting it will move it to the end.>>> from collections import ... Read More

Where are operators mapped to magic methods in Python?

Jayashree
Jayashree
Published on 07-Mar-2018 00:10:08
You can find the operators mapped to different magic methods here − link

What is the difference between operator and method on Python set?

Jayashree
Jayashree
Published on 07-Mar-2018 00:03:28
Python's set object represents built-in set class. Different set operations such as union, intersection, difference and symmetric difference can be performed either by calling corresponding methods or by using operators.Union by method>>> s1={1, 2, 3, 4, 5} >>> s2={4, 5, 6, 7, 8} >>> s1.union(s2) {1, 2, 3, 4, 5, ... Read More

How will you explain Python Operator Overloading?

Jayashree
Jayashree
Published on 06-Mar-2018 23:48:51
Every class in Python, whether built-in or user defined is inherited from object class. The object class has a number of properties whose name is preceded and followed by double underscores (__). Each of these properties is a wrapper around a method of same name. Such methods are called special ... Read More

How to find the value closest to negative infinity in Python?

Jayashree
Jayashree
Published on 06-Mar-2018 23:30:03
Although infinity doesn't have a concrete representation, the closest number to negative infinity is represented as return value of float() function with '-inf' as argument>>> a=float('-inf') >>> -inf
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