Programming Articles - Page 724 of 3363

To return an array with the number of non-overlapping occurrences of substring, use the numpy.char.count() method in Python Numpy. The first parameter is the sub i.e. the substring to search for. The numpy.char module provides a set of vectorized string operations for arrays of type numpy.str_StepsAt first, import the required library −import numpy as npCreate a One-Dimensional array of strings −arr = np.array(['kATIE', 'JOHN', 'KAte', 'AmY', 'BRADley'])Displaying our array −print("Array...", arr)Get the datatype −print("Array datatype...", arr.dtype) Get the dimensions of the Array −print("Array Dimensions...", arr.ndim)Get the shape of the Array −print("Our Array Shape...", arr.shape)Get the number of elements of the ... Read More

In this article, we will understand how to print half diamond star pattern. The pattern is formed by using multiple for-loops and print statements.Below is a demonstration of the same −InputSuppose our input is −Enter the number of rows : 8OutputThe desired output would be −The half diamond pattern : * ** *** **** ***** ****** ******* ******** ******* ****** ***** **** *** ** *AlgorithmStep 1 - START Step 2 - Declare three integer values namely i, j and my_input Step 3 - Read the required values from the user/ define the values Step 4 - We iterate through two ... Read More

To round to nearest integer towards zero, use the numpy.fix() method in Python Numpy. It rounds an array of floats element-wise to nearest integer towards zero. The rounded values are returned as floats. The 1st parameter, x is an array of floats to be rounded. The 2nd parameter, out is a location into which the result is stored. If provided, it must have a shape that the input broadcasts to. If not provided or None, a freshly-allocated array is returned.The method returns a float array with the same dimensions as the input. If second argument is not supplied then a ... Read More

In this article, we will understand how to print hollow right triangle star pattern. The pattern is formed by using multiple for-loops and print statements. For the pyramid at the first line it will print one star, and at the last line it will print n number of stars. For other lines it will print exactly two stars at the start and end of the line, and there will be some blank spaces between these two starts.Below is a demonstration of the same −InputSuppose our input is −Enter the size : 8OutputThe desired output would be −The hollow pyramid triangle ... Read More

Suppose we have an array A with N elements. Consider there are N cats and they are numbered from 1 to N. Each cat is wearing a hat and ith cat says "there are exactly A[i] number of different colors among the N-1 hats owned by the cats except me". We have to check whether there exists a sequence of colors of the hats which is consistent with the remarks of the cats.So, if the input is like A = [1, 2, 2], then the output will be True, because if cat 1, 2 and 3 wears hats in colors ... Read More

Suppose we have a number N. A cake seller is selling cakes with 40 rupees, and doughnuts with 70 rupees each. We have to check whether we can buy some of them with exactly N rupees or not.So, if the input is like N = 110, then the output will be True, because 40 + 70 = 110.To solve this, we will follow these steps −o := false Define a function dfs(), this will take i, if i > n, then:    return false if i is same as n, then:    return true if dfs(i + 40), then:   ... Read More

In this article, we will learn to create pyramid patterns using Java. It will help us to understand how loops work.  for loop while loop Java program to create pyramid patterns We are going to print the following pyramid patterns:  Half Star Pyramid Inverted Half Star Pyramid Star Pyramid Inverted Star Pyramid Numeric Pyramid Pattern 1: Half Star Pyramid We will initialize the row to 5 and a loop runs from i-1 to i

Suppose we have an array A with N elements. Consider there are N boxes and they are arranged in a circle. The ith box contains A[i] stones. We have to check whether we can remove all stones from the boxes by repeatedly performing the operation: Select a box say ith box. For each j in range 1 to N, remove exactly j stones from the (i+j)th box. Here (N+k)th box is termed as kth box. This operation cannot be performed if a box does not contain sufficient number of stones.So, if the input is like A = [4, 5, 1, ... Read More

Suppose we have a list of numbers A with N elements in it. The elements are 1, 2 or 3, Consider a number X[1][j] = A[j] where j is in range 1 to N. And X[i][j] = |X[i-1][j] - X[i-1][j+1]| where i is in range 2 to N and j is in range 1 to N+1-i. We have to find the value of X[i][j].So, if the input is like A = [1, 2, 3, 1], then the output will be 1, becauseX[1][1] to X[1][4] are 1, 2, 3, 1 X[2][1], X[2][2], X[2][3] are |1-2| = 1, |2 - 3| = ... Read More

In this article, we will understand how to print pyramid star pattern. The pattern is formed by using multiple for-loops and print statements.Below is a demonstration of the same −InputSuppose our input is −Enter the number of rows : 8OutputThe desired output would be −The pyramid star pattern : * * * * * * * * * * * * * * * * * * * * * * * ... Read More