Language is C

. Multiple Return Values One of the difficulties that both structs and pointers can solve in different ways is the problem of returning more than one piece of information from a function. Foir instance, a function that tries to parse a string as an integer needs to return both the successfully-parsed integer and information about whether that parse succeeded Because any number could be the result of a successful parse, if the function only returns an int, there's no way to distinguish a failed parse from a successful one. int parse_int(string str) int n; bool parse successful; if (parse successful) return n; return ???; /* What do we do now? In each of the following exercises, a main function wants to print the value that parse_int is storing in the assignable variable n, but only when the boolean value stored in parse successful is true; otherwise we want to print out "Parse error". You don't have to use all the blank lines we have provided, but you shouldn't use any extra lines. Double-check your syntax; we will be picky about syntax errors for this question. 1.1 Finish this program so that th e code will parse the first command-line argument as an int if possible. Make sure all your pointer dereferences are provably safe int* parse int (string str) f int n; bool parse_successful; // Omitted code that tries to parse the string. Puts the // result in the local variable n and sets parse successful // to true if it can, otherwise sets parse successful to // false if (parse_ successful) return return int main() argst Aargs parse) if (A->argc !- 1) error( "Wrong number of arguments"; int* p parse int (A->argv[0]); if ( else error("Parse error"; return 0; ) printint(