## Plus Minus

Given an array of integers, calculate the ratios of its elements that are positive, negative, and zero. Print the decimal value of each fraction on a new line with 6 places after the decimal. Note: This challenge introduces precision problems. The test cases are scaled to six decimal places, though answers with absolute error of up to 10^ -4 are acceptable. Example : arr = [1,1,0, -1,-1] There are n =5 elements, two positive, two negative and one zero. Their ratios are 2/5=0.400000 , 2

View Solution →## Staircase

Staircase detail: This is a staircase of size n = 4: # ## ### #### Its base and height are both equal to n. It is drawn using # symbols and spaces. The last line is not preceded by any spaces. Write a program that prints a staircase of size n. Function Description: Complete the staircase function in the editor below. staircase has the following parameter(s): int n: an integer Print: Print a staircase as described above. Input Format:

View Solution →## Say "Hello, World!" With Python

Here is a sample line of code that can be executed in Python: print("Hello, World!") You can just as easily store a string as a variable and then print it to stdout: my_string = "Hello, World!" print(my_string) The above code will print Hello, World! on your screen. Try it yourself in the editor below! Input Format You do not need to read any input in this challenge. Output Format Print Hello, World! to stdout.

View Solution →## Python If-Else

Task: Given an integer, n , perform the following conditional actions: If n is odd, print Weird If n is even and in the inclusive range of 2 to 5 , print Not Weird If n is even and in the inclusive range of 6 to 20, print Weird If n is even and greater than 20, print Not Weird Input Format: A single line containing a positive integer, . Constraints: 1<=n<=100 Output Format: Print Weird if the number is weird. Otherwise, print Not Weird.

View Solution →## Arithmetic Operators

The provided code stub reads two integers from STDIN, a and b. Add code to print three lines where: 1.The first line contains the sum of the two numbers. 2.The second line contains the difference of the two numbers (first - second). 3.The third line contains the product of the two numbers. Example: a=3 b=5 Print the following: 8 -2 15 Input Format: The first line contains the first integer, . The second line contain

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