What is the issue with this function as defined? def double(): print(x*2) A numeric value must be converted to a string before printing The function must return a value The number to double is not received. The function name must start with a capital letter

What is the issue with this function as defined? def double(): print(x*2) A numeric value must be converted to a string before printing The function must return a value The number to double is not received. The function name must start with a capital letter

C++ for Engineers and Scientists

4th Edition

ISBN:9781133187844

Author:Bronson, Gary J.

Publisher:Bronson, Gary J.

Chapter9: Completing The Basics

Section9.4: Character Manipulation Functions

Problem 5E

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(Numerical) a. The following is an extremely useful programming algorithm for rounding a real number to n decimal places: Step 1: Multiply the number by 10n Step 2: Add 0.5 Step 3: Delete the fractional part of the result Step 4: Divide by 10n For example, using this algorithm to round the number 78.374625 to three decimal places yields: Step1:78.374625103=78374.625 Step2:78374.625+0.5=78375.125 Step3:Retainingtheintegerpart=78375Step4:78375dividedby103=78.375 Using this algorithm, write a C++ function that accepts a user-entered value and returns the result rounded to two decimal places. b. Enter, compile, and run the program written for Exercise 11a.
Mark the following statements as true or false: a. To use a predefined function in a program, you need to know only the name of the function and how to use it. (1) b. A value-returning function returns only one value. (2, 3) c. Parameters allow you to use different values each time the function is called. (2, 7, 9) d. When a return statement executes in a user-defined function, the function immediately exits. (3, 4) e. A value-returning function returns only integer values. (4) f. A variable name cannot be passed to a value parameter. (3, 6) g. If a C++ function does not use parameters, parentheses around the empty parameter list are still required. (2, 3, 6) h. In C + + , the names of the corresponding formal and actual parameters must be the same. (3, 4, 6) i. A function that changes the value of a reference parameter also changes the value of the actual parameter. (7) j. Whenever the value of a reference parameter changes, the value of the actual parameter changes. (7) k. In C++, function definitions can be nested; that is, the definition of one function can be enclosed in the body of another function. (9) l. Using global variables in a program is a better programming style than using local variables, because extra variables can be avoided. (10) m. In a program, global constants are as dangerous as global variables. (10) n. The memory for a static variable remains allocated between function calls. (11)
Please fill the blanks for C. /*getchar VS scanf*/ #include<stdio.h> #define length 70 //Putting all function headers to top __1__ print_scanf(); __2__ print_getchar(); int main() { //print 2 sentences using getchar() for(int i = 0; i < 2; i++) { print_getchar(); } //print 2 sentences using scanf() for(int i = 0; i < 2; i++) { print_scanf(); } return 0; } //Function to print using getchar void print_getchar() { __3__ str[__4__]; //create a string called str with length defined above printf("Enter your sentence for getchar:"); int i = 0; while(1) //run forever,unless there's a break or return { /*save user's input to curChar since we need to check 2 cases: Case 1. if the inputted character is a letter we save curChar to our string (array of char) Case 2. if it's a new line character.…
C++ is my answers correct ? Write a function to convert a decimal number to a binary number. Answer: #include <iostream> #include <string> using namespace std; string decToBin(int dec) { string bin = ""; while (dec > 0) { bin = to_string(dec % 2) + bin; dec /= 2; } return bin; } int main() { cout << decToBin(10) << endl; return 0; } Write a function to calculate s =1!+2!+3!+....+10! Answer: #include <iostream> using namespace std; int findFactSum(int n) { int f = 1, Sum = 0; for (int i = 1; i <= n; i++) { f = f * i; Sum += f; } return Sum; } int main() { int n = 10; cout << findFactSum(n); return 0; }
21.1 LAB: Fun with characters Complete the check_character() function which has 2 parameters: A string, and a specified index. The function checks the character at the specified index of the string parameter, and returns a string based on the type of character at that location indicating if the character is a letter, digit, whitespace, or unknown character. Ex: The function calls below with the given arguments will return the following strings: check_character('happy birthday', 2) returns "Character 'p' is a letter"check_character('happy birthday', 5) returns "Character ' ' is a white space"check_character('happy birthday 2 you', 15) returns "Character '2' is a digit"check_character('happy birthday!', 14) returns "Character '!' is unknown" Use Python, please.
(Format an integer) Write a function with the following header to format the inte- ger with the specified width. def format(number, width): The function returns a string for the number with prefix 0s. The size of the string is the width. For example, format(34, 4) returns "0034" and format(34, 5) returns "00034". If the number is longer than the width, the function returns the string representation for the number. For example, format(34, 1) returns "34". Write a test program that prompts the user to enter a number and its width and dis- plays a string returned from invoking format(number, width). Here is a sample run:
Write a isPalindrome Function Write a function isPalindrome($str) that returns true if the parameter string is a palindrome (a palindrome is a word or sentence that reads the same forward and backward at the character level). You should ignore non-letter characters when determining if the string is a palindrome. Thus, isPalindrome("A man, a plan, a canal, Panama!") should return true.
is it correct ? Write a function to change all the upper case to lower case in a given string. Answer: #include <iostream> #include <string> using namespace std; string toLowerCase(string str) { for (char& c : str) { if (isupper(c)) { c = tolower(c); } } return str; } int main() { string str = "HI, MY NAME IS KHALED MOHAMMED!"; cout << toLowerCase(str) << endl; return 0; }
please code in python:def best(len_score,lst): max1=0 for i in reversed(lst): temp = len_score(i) if temp >= max1: max1 = temp ans = i return ans The best function should be able to take any scoring function and return the result. Define a function, number_of_vowels, that returns the number of vowels in a string. Pass it to your best function to find the name in names with the most vowels. See how easy it is to change the score function for different functionalities! Example: names = ["Ben", "April", "Zaber", "Alexis", "McJagger", "J.J.", "Madonna"] best(number_of_vowels, names) -> 'Alexis'
2. Code the given function and test it inside the main function. int Length(char* str){ // return the length of string str //write your code here}
1. Write a function that receives a string of characters as its input, and check if it is symmetric to a dollar sign. You may use following function header: bool isInLanguage_1(string aString) 2. Write a function that receives a string of characters and return true if the string is in language, otherwise it returns false. You may use following function header (Assume a string is in language if it is read from the left side is the same as it is read from the right side. For example, a-b-d-c is not in the language, a-b-c-a-c-b-a is in language): bool isInLanguage_2(string aString) I tried using a while loop, but for some reason, I am not getting the output I was hoping for and would like you to check this out.
Problem D. Durdle Game Using the function from the previous problem, write a function durdle_game(target) which takes in as an argument a single string that will be the target to guess, and lets the user attempt to guess the target word. Each time the user makes a guess, the function will print out the result of the previous function to tell the user how close they are. If the user guesses correctly, then the game is over. Have the function return the number of guesses that it took the user to get the correct answer. Examples (text in bold is returned, text in red is user input.): >>> durdle_game('trick') Welcome to Durdle! Enter a guess:touch GBBGB Enter a guess:trash GGBBB Enter a guess:truck GGBGG Enter a guess:trick GGGGG Congratulations, you got it in 4 guesses! 4 >>> durdle_game('stoop') Welcome to Durdle! Enter a guess:chart BBBBY Enter a guess:tones YYBBY Enter a guess:togas YYBBY Enter a guess:tofus YYBBY Enter a guess:stock GGGBB…