This program will output a right triangle based on user specified height triangle_height and symbol triangle_char. (1) The given program outputs a fixed-height triangle using a * character. Modify the given program to output a right triangle that instead uses the user-specified triangle_char character. (1 pt) (2) Modify the program to use a loop to output a right triangle of height triangle_height. The first line will have one user-specified character, such as % or *. Each subsequent line will have one additional user-specified character until the number in the triangle's base reaches triangle_height. Output a space after each user-specified character, including a line's last user-specified character

This program will output a right triangle based on user specified height triangle_height and symbol triangle_char. (1) The given program outputs a fixed-height triangle using a * character. Modify the given program to output a right triangle that instead uses the user-specified triangle_char character. (1 pt) (2) Modify the program to use a loop to output a right triangle of height triangle_height. The first line will have one user-specified character, such as % or *. Each subsequent line will have one additional user-specified character until the number in the triangle's base reaches triangle_height. Output a space after each user-specified character, including a line's last user-specified character

LINUX+ AND LPIC-1 GDE.TO LINUX CERTIF.

5th Edition

ISBN:9781337569798

Author:ECKERT

Publisher:ECKERT

Chapter1: Introduction To Linux

Section: Chapter Questions

Problem 5RQ: Which of the following kernels are developmental kernels? (Choose all that apply.) a. 2.3.4 b. 3.5.5...

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Computer Science Please explaın these codes and what the commands mean int main(){int sockfd;char buffer[MAXLINE];char* message = "Hello Server";struct sockaddr_in servaddr;int n, len;if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {printf("socket creation failed");exit(0);}memset(&servaddr, 0, sizeof(servaddr));servaddr.sin_family = AF_INET;servaddr.sin_port = htons(PORT);servaddr.sin_addr.s_addr = inet_addr("127.0.0.1");sendto(sockfd, (const char*)message, strlen(message),0, (const struct sockaddr*)&servaddr,sizeof(servaddr));printf("Message from server: ");n = recvfrom(sockfd, (char*)buffer, MAXLINE,0, (struct sockaddr*)&servaddr, &len);puts(buffer);close(sockfd);return 0;}
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1. We have defined a symmetric cryptography algorithm using the XOR operator. Assume our messages (before encryption) consist of only uppercase and lowercase letters, digits and blank character. In addition, assume the key size is only one byte which is an integer between 0 and 255 (inclusive). The pseudocode of the proposed encryption algorithm is as follows: Read the message // for example message=”Hi” Read the key // for example key=10 Cipher_text=[] //an empty list for i=1 to len(message): Cipher_text= Cipher_text.append(XOR(message[i],key)) Return Cipher_text Assume XOR function, takes a character and the key, then returns the result of bitwise XOR of ASCII code of the letter with the key as an (one byte) integer. For example, if message=”Hi” and key=10, then we should first calculate the ASCCI code of “H” which is 72 and find the result of (72 XOR 10) which is 66. Then the ASCCI code of “i” is 105, so the result of (105 XOR 10) is 99. Thus the Cipher_text would be…
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Write a C program based on the following code: int p[2]; char *argv[2]; argv[0] = "wc"; argv[1] = 0; pipe(p); if(fork() == 0) { close(0); dup(p[0]); close(p[0]); close(p[1]); exec("/bin/wc", argv); } else { close(p[0]); write(p[1], "hello world\n", 12); close(p[1]); } The program must accept the name of a file as a command line argument in argv and pipe the contents of that named file to wc similar to the way the sample code pipes a constant string to wc. Program should compile and work in Linux and xv6.
Santa Claus is working to upgrade his list from a handwritten one to a more modern, digital solution. As youlikely already know, he must keep track of each child, their naughty/nice status, their location, position on hisroute, the toys they asked for, the elves assigned to make those toys, the elves’ working schdule, their favoritepayment methods, and keep track of their production as the year progresses, to make sure nobody will be leftout this Christmas. Keep in mind, he also needs a way to check his list twice. The following bulleted listreiterates what we’ve already discussed as requirements.• Children, their naughty/nice status (two of these for checking the list twice), location, route position (i.e.what order their presents are delivered in), requested toys.• List of elves, production assignments (which toys for which children), preferred payment methods (candy,candy-canes, candy corn, syrup), their work schdedules (assume 3, 8 hour shifts).• List of presents, whether or not…
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6 Cell Phone PackagesCell Solutions, a cell phone provider, sells the following packages:300 minutes per month: $45.00 per month800 minutes per month: $65.00 per month1500 minutes per month: $99.00 per monthThe provider sells the following phones (a 6 percent sales tax applies to the sale of a phone):Model 100: $29.95Model 110: $49.95Model 200: $99.95Customers may also select the following options:Voice mail: $5.00 per monthText messaging: $10.00 per monthWrite an application that displays a menu system. The menu system should allow the userto select one package, one phone, and any of the options desired. As the user selects itemsfrom the menu, the application should show the prices of the items selected.
1. Which of the following information is specified by a bitcoin transaction? Is it C? A. A number of inputs (coins being consumed ). B. A number of outputs (coins being created). C. The user's account balance. 2. Which of the following statements about the CHECKMULTISIG is INCORRECT? Is it D? A. This is one of the basic instructions in Bitcoin scripting language. B. It let you check multiple signatures with one instruction. C. It requires specifying n public keys and a parameter t. For this instruction to execute validly, there have to be at least t signatures from t out of n of those public keys that are valid. D. Currently, there is no bug that can be found in CHECKMULTISIG.
Why My function browse () and order() don't work when I choose choice 2 or 6 ??? would you check it please for me ? Thanks #include<iostream>#include <fstream>#include<string>using namespace std;#define M 100int count = 0;struct AddressBook{ string FullName; string Birthday; string Address; string Email; string PhoneNumber;}Person[M];void WriteToFile ();void add ();void browse ();void searchByName ();void searchByBirthday ();void removeContact ();void order (); int main (){ int choice; do { cout << "Please Enter Your Choise: \n"; cout <<" 1-Add New Person\n 2-Browse\n 3-Search By Full Name \n 4-Search By Birthday \n 5-Remove a Person" << "\n 6-Alphabetical Order \n 7-Exit\n"; cin >> choice; switch (choice) { case 1: add (); break; case 2: browse (); break; case 3: searchByName (); break; case 4: searchByBirthday (); break; case 5: removeContact (); break;…