0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
How do you use sin in c plus plus?
#include<iostream> int main() { std::cout << "sin(1) = " << std::sin(1.0) << std::endl; std::cout << "cos(1) = " << std::cos(1.0) << std::endl; std::cout << "tan(1) = " << std::tan(1.0) << std::endl; std::cout << "asin(1) = " << std::asin(1.0) << std::endl; std::cout << "acos(1) = " << std::acos(1.0) << std::endl; std::cout << "atan(1) = " << std::atan(1.0) << std::endl; } Output: sin(1) = 0.841471 cos(1) = 0.540302 tan(1) = 1.55741 asin(1) = 1.5708 acos(1) = 0 atan(1) = 0.785398
How do you split a string in delimit c plus plus?
#include<iostream> #include<vector> #include<string> std::vector<std::string> parse (const std::string& s, const char delim) { std::vector<std::string> result {}; auto start = 0U; auto end = s.find (delim); while (end != s.npos) { result.push_back (s.substr(start, end - start)); start = ++end; end = s.find (delim, start); } result.push_back (s.substr (start, s.npos - start)); return result; } std::vector<std::string> parse (const std::string& s, const std::string& delim) { std::vector<std::string> result {}; auto start = 0U; auto end = s.find (delim); while (end != s.npos) { result.push_back (s.substr(start, end - start)); start = end + delim.length(); end = s.find (delim, start); } result.push_back (s.substr (start, s.npos - start)); return result; } int main() { std::string str1 = "This is a string that will be parsed by a single-space delimiter."; std::string str2 = "This==is==a==string==that==will==be==parsed==by==equal==operator."; std::string str3 = "This string has no delimiter."; std::cout << str1 << std::endl; std::vector<std::string> v1 = parse (str1, ' '); for (auto i : v1 ) std::cout << i << std::endl; std::cout << std::endl; std::cout << str2 << std::endl; std::vector<std::string> v2 = parse (str2, "=="); for (auto i : v2 ) std::cout << i << std::endl; std::cout << std::endl; std::cout << str3 << std::endl; std::vector<std::string> v3 = parse (str3, '\\'); for (auto i : v3 ) std::cout << i << std::endl; std::cout << std::endl; }
A c comma c plus plus program that can accept first name surname and display it?
int main() { std::string first, last; std::cout << "Enter your first name: "; std::cin >> first; std::cout << "Enter your last name: "; std::cin >> last; }
How C plus plus program to implement employee directory which will let the organization to perform the functions. Insert the record of new employee?
#include<iostream> #include<vector> #include<string> struct employee { std::string forename; std::string surname; std::string department; }; struct directory { std::vector<employee> v; void add_employee (const std::string&, const std::string&, const std::string&); }; void directory::add_employee (const std::string& forename, const std::string& surname, const std::string& department) { v.push_back (employee{forename, surname, department}); } int main() { std::string forename, surname, department; std::cout << "Enter employee's forename: "; std::cin >> forename; std::cout << "Enter employee's surname: "; std::cin >> surname; std::cout << "Enter employee's department: "; std::cin >> department; add_employee (forename, surname, department); }
C plus plus program for searching a word from text file?
#include<iostream> #include<fstream> #include<vector> #include<string> std::string get_input_file() { while (true) { std::cout << "Enter the input file name: "; std::string filename; std::getline (std::cin, filename); std::ifstream file (filename); if (file.is_open()) { file.close(); return filename; } std::cerr << "The file could not be opened.\n" << std::endl; } } std::string get_search_word() { while (true) { std::cout << "Enter the word to search for: "; std::string search; std::cin >> search; if (search.size()) return search; std::cerr << "The search word cannot be an empty string.\n" << std::endl; } } std::vector<size_t> get_offsets(const std::string& filename, const std::string& search) { std::vector<size_t> offsets; std::ifstream file (filename); if (!file.is_open()) throw std::exception("The file could not be opened."); size_t offset = 0; while (!file.eof()) { size_t pos = 0; char c; while (!file.read(&c, 1).eof() && c!=search[pos]) ++offset; while (pos!=search.size()-1 && !file.read(&c, 1).eof() && c==search[++pos]); if (pos==search.size()-1 && c==search[pos]) offsets.push_back (offset); offset += pos; pos = 0; } file.close(); return offsets; } int main() { std::cout << "Word Search\n" << std::endl; std::string filename = get_input_file(); std::string search = get_search_word(); std::vector<size_t> offsets = get_offsets (filename, search); std::cout << "The word was found " << offsets.size() << " time" << (offsets.size()==1?"":"s") << ".\n" << std::endl; if (offsets.size()) { std::cout << "Offsets:\n"; for (auto off : offsets) std::cout << off << std::endl; } }
Does magma stays as a rock forever?
no
What material stays cold forever?
Marble
What pig stays small forever?
Royal Dandies
Is an electron die some times or still forever?
An Electron cannot die, it stays forever.
what kind of pig stays tiny forever?
Sorry, there is no such pig.
Are dragon amulets permanent?
once you pay for it it lasts forever once you pay for it it lasts forever
How long will marijuana stay in your system if you are a casual smoker?
it stays there forever, a bit like how chewing gum stays in your stomach
What happens once a fossil forms a rock?
It stays into a rock forever.
What the three type of meters?
A meter stays a meter. Always and forever.
Does she get with Jacob in the end of the very last movie?
No she does not. She stays with Edward forever.
How long soes bait car stays on?
this answer is given from HET SHAH STD 7th .volvo is a good car
Does dust mites stays forever in humans body?
No no no it do not stay in bodbod forevers
