Flatten a 2d numpy array into 1d array in Python

Pradeep Elance
Published on 04-Jun-2020 15:37:15
A 2d numpy array is an array of arrays. In this article we will see how to flatten it to get the elements as one dimensional arrays.With flattenThe flatten function in numpy is a direct way to convert the 2d array in to a 1D array.Example Live Demoimport numpy as np ... Read More

First occurrence of True number in Python

Pradeep Elance
Published on 04-Jun-2020 15:35:31
In this article we are required to find the first occurring non-zero number in a given list of numbers.With enumerate and nextWe sue enumerate to get the list of all the elements and then apply the next function to get the first non zero element.Example Live DemolistA = [0, 0, 13, ... Read More

First Non-Empty String in list in Python

Pradeep Elance
Published on 04-Jun-2020 15:31:38
Given a list of strings, lets find out the first non-empty element. The challenge is – there may be one, two or many number of empty strings in the beginning of the list and we have to dynamically find out the first non-empty string.With nextWe apply the next function to ... Read More

Finding relative order of elements in list in Python

Pradeep Elance
Published on 04-Jun-2020 15:28:00
We are given a list whose elements are integers. We are required to find the relative order which means if they are sorted in ascending order then we need to find index of their positions.With sorted and indexWe first sort the entire list and then find out the index of ... Read More

Find whether all tuple have same length in Python

Pradeep Elance
Published on 04-Jun-2020 15:26:27
In this article we will find out if all the tuples in a given list are of same length.With lenWe will use len function and compare its result to a given value which we are validating. If the values are equal then we consider them as same length else not.Example Live ... Read More

Find top K frequent elements from a list of tuples in Python

Pradeep Elance
Published on 04-Jun-2020 15:24:22
We have a list of tuples. In it we are required to find the top k frequent element. If k is 3 we are required to find the top three elements from the tuples inside the list.With defaultdictWe put the the elements into a dictionary container using defaultdict. Then find ... Read More

Find the tuples containing the given element from a list of tuples in Python

Pradeep Elance
Published on 04-Jun-2020 15:21:18
A list can have tuples as its elements. In this article we will learn how to identify those tuples which contain a specific search element which is a string.With in and conditionWe can design a follow with in condition. After in we can mention the condition or a combination of ... Read More

Maximum Score Words Formed by Letters in C++

Arnab Chakraborty
Published on 04-Jun-2020 15:19:10
Suppose we have a list of words, a list of single letters and score for every character. We have to find the maximum score of any valid set of words formed by using the given letters.We may not use all characters in letters and each letter can only be used ... Read More

Find the sublist with maximum value in given nested list in Python

Pradeep Elance
Published on 04-Jun-2020 15:19:01
A list can contain other list as its elements. In this article we are equal to find the sublist with maximum value which are present in a given list.With max and lambdaThe max and the Lambda function can together be used to give that sublist which has the maximum value.Example Live ... Read More

Find the Number Occurring Odd Number of Times using Lambda expression and reduce function in Python

Pradeep Elance
Published on 04-Jun-2020 15:17:14
In this article we are required to find that number from the list which occurs odd number of times in the given list. We are also required to use the Lambda function and the reduce function.We design a function where the reduce function is used by applying the Lambda function ... Read More
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