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Python Articles
Page 172 of 852
Python Program for Find sum of odd factors of a number
In this article, we will learn about the solution to the problem statement given below −Problem statementGiven a number input n, the task is to Find the sum of odd factors of a number.Here we first need to eliminate all the even factors.To remove all even factors, we repeatedly divide n till it is divisible by 2. After this step, we only get the odd factors of the number.Below is the implementation −Exampleimport math def sumofoddFactors( n ): #prime factors res = 1 # ignore even factors while n % 2 == 0: ...
Read MorePython Program for Find sum of Series with the n-th term as n^2 – (n-1)^2
In this article, we will learn about the solution to the problem statement given below:Problem statementWe are given an integer input n and we need to sum of all n terms where the n-th term in a series as expressed below −Tn = n2 - (n-1)2We have direct formulas for computing the sum which includes the squared muktiolicaion of n which involves more time complexity . To reduce that we usr modular multiplication approach hereNow let's see the implementation −Example# Python program to find sum of given # series. mod = 1000000007 def findSum(n): return ((n % mod) * ...
Read MoreFinding the vertex, focus and directrix of a parabola in Python Program
In this article, we will learn about the solution to the problem statement given below −Problem statementThe standard form of a parabola equation is y=ax^2+bx+c. Input the values of a, b and c, our task is to find the coordinates of the vertex, focus and the equation of the directrix.The vertex of a parabola is the coordinate from which it takes the sharpest turn whereas y=a is the straight-line used to generate the curve.A directrix a fixed line used in describing a curve or surface.Now let’s see the implementation −Exampledef findparabola(a, b, c): print ("Vertex: (" , (-b / ...
Read MoreLinear Search in Python Program
In this article, we will learn about the Linear Search and its implementation in Python 3.x. Or earlier.AlgorithmStart from the leftmost element of given arr[] and one by one compare element x with each element of arr[]If x matches with any of the element, return the index value.If x doesn’t match with any of elements in arr[] , return -1 or element not found.Now let’s see the visual representation of the given approach −Exampledef linearsearch(arr, x): for i in range(len(arr)): if arr[i] == x: return i return -1 arr = ['t', ...
Read MorePython Program for Smallest K digit number divisible by X
In this article, we will learn about the solution and approach to solve the given problem statement.Problem statementIntegers n and d are given. We need to find the smallest n-digit number divisible by d.Approach1. FirstNow let's we compute MIN : smallest n-digit number (1000...n-times)2. Now, If MIN % X is 0, ans = MIN3. else, ans = (MIN + X) - ((MIN + X) % X))This is because there will be a number in range [MIN...MIN+X] which is divisible by d.Now let’s see the implementation −Exampledef answer(n, d): # Computing MAX Min = pow(10, d-1) if(Min%n == ...
Read MorePython Program for Sum of squares of first n natural numbers
In this article, we will learn about the solution and approach to solve the given problem statement.Problem statementGiven a positive integer N as input . We need to compute the value of 12 + 22 + 32 + ….. + N2.Problem statement:This can be solved by two methodsMultiplication addition arithmeticUsing mathematical formulaApproach 1: Multiplication & Addition ArithmeticHere we run a loop from 1 to n and for each i, 1
Read MorePython Program to Check Armstrong Number
In this article, we will learn about the solution and approach to solve the given problem statement.Problem statementGiven an integer n , we need to check that the given integer is an armstrong number.A positive integer is called an Armstrong number of order n ifabcd... = a^n + b^n + c^n + d^n + …Here we will be discussing the brute-force approach for an armstrong number of 3 digits and hence of order three.To check the armstrong number of order n we need to replace 3 by the corresponding order value in line number 7.Now let’s see the implementation −Examplenum ...
Read MorePython program to check if a string contains all unique characters
In this article, we will learn about the solution and approach to solve the given problem statement.Problem statementGiven a sring input, we need to find whether a string contains all unique characters or not.ApproachWe will create an array of boolean values, where the variable flag at the index i indicates that whether character i in the alphabet is contained in the string or not.The second time we encounter this character we can immediately return false as string characters is no longer unique.We can also return false if the string length exceeds the value of number of unique characters presnt in ...
Read MorePython Program to check if the given array is Monotonic
In this article, we will learn about the solution and approach to solve the given problem statement.Problem statementGiven an array input Arr containing n integers. We need to check whether the input array is Monotonic in nature or not.An array is said to be monotonic in nature if it is either continuously increasing or continuously decreasing.Mathematically,An array A is continuously increasing if for all i
Read MorePython program to check if the given string is pangram
In this article, we will learn about the solution and approach to solve the given problem statement.Problem statementGiven a string input, we need to generate a Python program to check whether that string is Pangram or not.A pangram is a sentence/ series of words which contains every letter in the English Alphabets collection.Now let’s see how we can solve the problemWe will use a loop that checks whether each character present in the input string belongs to the alphabet set or not which we will declare manually .The implementation of the approach above is given by −Exampleimport string def ispangram(str): ...
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