Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:75:5: error: ‘f’ was not declared in this scope f>>s>>n; ^ user.cpp:134:9: error: ‘g’ was not declared in this scope g<<"-1\n"; ^ user.cpp:136:9: error: ‘g’ was not declared in this scope g<<cost<<"\n"; ^ user.cpp:73:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("taxe2.in", "r", stdin); ^ user.cpp:74:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("taxe2.out", "w", stdout); ^