Eroare de compilare: In file included from /usr/include/c++/4.4/unordered_map:35, from user.cpp:2: /usr/include/c++/4.4/c++0x_warning.h:31:2: error: #error This file requires compiler and library support for the upcoming ISO C++ standard, C++0x. This support is currently experimental, and must be enabled with the -std=c++0x or -std=gnu++0x compiler options. user.cpp: In function ‘void read_data()’: user.cpp:15: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:16: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘int main()’: user.cpp:23: error: ‘unordered_map’ was not declared in this scope user.cpp:23: error: expected primary-expression before ‘,’ token user.cpp:23: error: expected primary-expression before ‘int’ user.cpp:23: error: expected ‘;’ before ‘int’ user.cpp:24: error: expected primary-expression before ‘,’ token user.cpp:24: error: expected primary-expression before ‘int’ user.cpp:24: error: expected ‘;’ before ‘int’ user.cpp:31: error: ‘hash’ was not declared in this scope user.cpp:48: error: ‘it’ was not declared in this scope user.cpp:26: warning: unused variable ‘s’ user.cpp:26: warning: unused variable ‘p’