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 ‘int getint()’: user.cpp:20: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result user.cpp:24: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result user.cpp: At global scope: user.cpp:32: error: expected constructor, destructor, or type conversion before ‘<’ token user.cpp:33: error: ‘unordered’ in namespace ‘std’ does not name a type user.cpp: In function ‘void DF(int)’: user.cpp:44: error: ‘S’ was not declared in this scope user.cpp:53: error: ‘S’ was not declared in this scope user.cpp:62: error: ‘S’ was not declared in this scope user.cpp:75: error: ‘it’ was not declared in this scope