Given a string, return a new string made of every other charcter starting with the first, so "Hello" yields "Hlo". Use a counter- controlled for loop. Complete the following file: main.cpp 1 #include 2 using namespace std; 3 4 string skipper(const string& s) 5 { 6 string result; 7 // Add your loop here 8 for (double n = 10; n >= 0; --n) 9 { 10 11 } 12 13 return result; 14 } Calling with Arguments Name Arguments Actual Expected fail skipper "Hello" Hlo" fail skipper "Hi" HT fail skipper "Heeololeo" "Hello" fail skipper "HiHiHi" Given a string, return a new string where every character is doubled. Complete the following file: main.cpp 1 2 #include 3 using namespace std; 4 5 string doubleUp(const string& s) 6 { 7 string result; 8 // Add your loop here 9 10 return result; 11