1.
问题:
hash_map定义那行: error: ISO C++ forbids declaration of `hash_map ' with no type
hash_map定义那行: error: expected `; ' before ' < ' token
解决:
加入引用:
#include <ext/hash_map> #include <string> #include <iostream> #include <sstream> #include <list> using namespace std; using namespace __gnu_cxx;//需要引入
2.