Compilare: user.cpp: In function ‘int main()’: user.cpp:44:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("joc.in", "r", stdin); ^ user.cpp:45:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("joc.out", "w", stdout); ^ user.cpp:73:16: warning: ‘c’ may be used uninitialized in this function [-Wmaybe-uninitialized] afis(c, ' '); ^ user.cpp:72:16: warning: ‘l’ may be used uninitialized in this function [-Wmaybe-uninitialized] afis(l, ' '); ^