Refactor

src/offer_58.cpp

@@ -1,6 +1,6 @@
 #include "offer_58.hpp"
 
-void Solution::reverseSubStr(string &s, int begin, int end) {
+void Offer58::reverseSubStr(string &s, int begin, int end) {
   for (; begin < end; ++begin, --end) {
     char tmp = s[begin];
     s[begin] = s[end];
@@ -8,7 +8,7 @@ void Solution::reverseSubStr(string &s, int begin, int end) {
   }
 }
 
-string Solution::reverseLeftWords(string s, int n) {
+string Offer58::reverseLeftWords(string s, int n) {
   int len = s.length();
   reverseSubStr(s, 0, n - 1);
   reverseSubStr(s, n, len - 1);