15. Filename: password dls369.cpp, but replace my email id with yours. (a) Write a function which returns true if a C-string contains a given character, false if the character is not present. Its exact declaration should be: bool contains_char(char cstring[], char target) The function should contain no cout statements. You may use strlen, but not strchr or std::string.find. Here are some test cases: • contains_char("", 'a’) H false • contains_char("a", 'a') H true • contains char("hello", 'h’) → true • contains_char("hello", 'e') → true • contains_char("hello", 'o') H true c("hello" !') H false

15. Filename: password dls369.cpp, but replace my email id with yours. (a) Write a function which returns true if a C-string contains a given character, false if the character is not present. Its exact declaration should be: bool contains_char(char cstring[], char target) The function should contain no cout statements. You may use strlen, but not strchr or std::string.find. Here are some test cases: • contains_char("", 'a’) H false • contains_char("a", 'a') H true • contains char("hello", 'h’) → true • contains_char("hello", 'e') → true • contains_char("hello", 'o') H true c("hello" !') H false

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Homework 10-2 Programming Challenge: 12 - Password Verifier Use the string data type. Do not use arrays of type char or any functions in the old "C String" libraries. Six characters? Seriously? Set the minimum password length to twelve characters. We will also require that the password not contain any space characters. In addition to the requirement that the password contain at least one upper case letter, one lower case letter, and one digit, add the additional requirement that the password contain at least one "special" character. We will consider any character that is printable, not alphanumeric, and not a space character to be "special." That includes punctuation, but may include additional non-punctuation characters. Unfortunately at our level of C++ it's more or less impossible for us to actually test passwords like Señor_99 but the ñ (with a tilde) would count as a special character using our rules. Write functions to complete these tasks as appropriate.
C++ Need Help with 3 part #include <iostream>#include <string>using namespace std; void PrintMenue() {cout << "\nMENU" << endl;cout << "c - Number of non-whitespace characters" << endl;cout << "w - Number of words" << endl;cout << "f - Find text" << endl;cout << "r - Replace all !'s" << endl;cout << "s - Shorten spaces" << endl;cout << "q - Quit" << endl;cout << "\nChoose an option:" << endl;} /* Define your functions here. */ int main() { string text;cout << "Enter a sample text:\n" << endl;getline(cin, text);cout << "You entered: ";cout << text << endl;PrintMenue();return 0;}
(C++) 9. True/False: the strcpy() function will make sure there is enough memory allocated in the destination string before copying C-strings 10. True/False: when creating a string object, you must dynamically allocate enough bytes to hold the string 11. Consider the following statement, assuming goAgain is a valid char. Rewrite it using toupper() or tolower() if (goAgain == 'y' || goAgain == 'Y') 12. Write a C++ function which accepts a pointer to a C-string as its argument. It should return the number of words in the C-string. For example, for the C-string “The Giants won the pennant!” your function should return 5. You may assume the parameter passed is a pointer to a valid, null-terminated C-string with no newlines or tabs, exactly one space separates each word, and there is at least one word. int wordCounter(char* str)
I need a function that takes a string and returns initials such as Bob Burnett becoming B.B. string CreateAcronym(string userPhrase);int main() {while (true){string userPhrase;getline(cin, userPhrase); if (userPhrase == "") {break; }cout << CreateAcronym(userPhrase) << endl;}return 0;}string createAcronym( const string && userPhrase ) {int i;string acronym;bool use_next = true; for (i=0; i < userPhrase.size(); i++){char character = userPhrase.at(i);int ascii = (int)character;if(ascii > 64 && ascii < 91 && use_next == true){acronym += character;use_next = false;} else if(ascii == 32){use_next=true;}else{use_next = false;}}return acronym;} Please fix my program using c++.
C++ Part I - Fill in the missing parts of this code #include<iostream> #include<string> #include<fstream> using namespace std; class classGrades { public: void printlist() const; void inputGrades(ifstream &); double returnAvg() const; void setName(string); void setNumStudents(int); classGrades(); classGrades(int); private: int gradeList[30]; int numStudents; string name; }; int main() { classGrades intro(5), intermediate; intro.printlist(); ifstream infile; infile.open("data.txt"); if (!infile) { cout << "Error opening file!" << endl; exit(1); } //set the name of the classGrades object intro to CSC126 //set the name of the object intermediate to CSC211 intermediate.setNumStudents(4);…
(10) Question 2.2 NOTE: Pointers must be used to solve the following problem. You will 8 marks if pointers are not used, even if the solution is correct. Write a function createPassword() with no return value to randomly select 8 capital letters from the alphabet. The function receives the address of the first characters of the password string as parameter. Hint: Declare a characters string that contains all the capital letters of the alphabet and use the index values of the characters in the string for random selection of characters, e.g. 5 char alpha [27] = “ABCDEFGHIJKLMNOPQRSTUVWXYZ”; char *pAlpha = alpha;
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; }
#include <iostream>#include <string>#include <climits>using namespace std; class BalancedTernary {protected:// Store the value as a reversed string of +, 0 and - charactersstring value; // Helper function to change a balanced ternary character to an integerint charToInt(char c) const {if (c == '0')return 0;return 44 - c;} // Helper function to negate a string of ternary charactersstring negate(string s) const {for (int i = 0; i < s.length(); ++i) {if (s[i] == '+')s[i] = '-';else if (s[i] == '-')s[i] = '+';}return s;} public:// Default constructorBalancedTernary() {value = "0";} // Construct from a stringBalancedTernary(string s) {value = string(s.rbegin(), s.rend());} // Construct from an integerBalancedTernary(long long n) {if (n == 0) {value = "0";return;} bool neg = n < 0;if (neg)n = -n; value = "";while (n != 0) {int r = n % 3;if (r == 0)value += "0";else if (r == 1)value += "+";else {value += "-";++n;} n /= 3;} if (neg)value = negate(value);} // Copy…
C++ CODE HELP Write code to read a list of song durations and song names from input. For each line of input, set the duration and name of currSong. Then add currSong to playlist. Input first receives a song duration, then the name of that song (which you can assume is only one word long). Input example: 424 Time383 Money-1 CODE WITH MISSING CODE LINES #include <iostream>#include <string>#include <vector>using namespace std; class Song { public: void SetDurationAndName(int songDuration, string songName) { duration = songDuration; name = songName; } void PrintSong() const { cout << duration << " - " << name << endl; } int GetDuration() const { return duration; } string GetName() const { return name; } private: int duration; string name;}; int main() { vector<Song> playlist; Song currSong; int currDuration; string currName; unsigned int i; cin >>…
Question 3.3. Write a function called remove. The code will remove the nth index character from a non-empty string.
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.
C++ The file text.txt contains a sentence text written in all small letters and does not have any punctuation marks, no numbers, no symbols except for spaces. You are required to write a program which accepts an operation code, and zero to two inputs depending on the operation code. Based on the operation code, you will call three versions of the overlaoded function textProcessing as follows: Operation 0: The function removes all vowels from the ORIGINAL sentence. The vowels considered are the small letters (a, e, i, o, u y, and w). Operation 1: The code further asks for one lowercase letter to be input by the user. If the character is not a lower case letter, the code outputs Invalid. The function returns the distance (difference) between the letter first occurence and last occurence in the text. If the letter does not occur in the sentence, it returns 0. Operation 2: The code asks for two lowercase letters to be input by the user. If the characters are not lower case letters, the…