fix garbled Chinese character

section3-2/main.cpp

@@ -1,4 +1,4 @@
-//²Î¿¼£º http://blog.csdn.net/u012766950/article/details/38319843
+//reference: http://blog.csdn.net/u012766950/article/details/38319843
 #include <iostream>
 #include <vector>
 #include <algorithm>
@@ -63,4 +63,4 @@ int main() {
 		king.clear();
 	}
 	return 0;
-}
+}