need help with this C++ project

using namespace sto; gclass Submission { fe Test 3 . Given a string, using the stol() method, convert the string to an integer. Return the integer. static int Test3(string Joput) [ /. Test . Given a string, using the stod() method, convert the string i. to a double. Return the double. static double Test4(string input) { Test S Given a string, using the stoff) method, convert the string * to a float. Return the Float. static float TestS(string input) { return ; Test & . Given a string, using the stock.() method, convert the string . to an unsigned intoger. Return the unsigned intogar. static unsigned int Test(string input) { Test 7 Given a string, using the stoull() method, convert the string to an unsigns Lang. Return the waisigned long. static unsigned Long Test7(string input) [ Test .Given a double, using a cast, convert the double to a float. Return the float, static Float TestsComble input) { return .; Test Given a Float, using a cast, convert the flest to in intoger, Return the integer. static int Test (float Input) { return .; Given an integer, convert the intoger *to a string using the to_string() method. Return the string. Hoferen - https://culusplus.com/reference/string/ta_string/ .peeke forpeaks.ard/abita string-in-coal static string Test18Cant input) { return ."