Eroare de compilare: user.cpp:75: error: ‘string’ does not name a type user.cpp: In function ‘int main()’: user.cpp:111: error: ‘string’ was not declared in this scope user.cpp:111: error: expected ‘;’ before ‘seq’ user.cpp:112: error: ‘seq’ was not declared in this scope user.cpp:96: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:97: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:100: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result