Compilare: user.cpp: In function ‘void rez()’: user.cpp:58:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (imuc = 0; imuc < V.size(); imuc++) ^ user.cpp:54:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, x, y, z, imuc; ^ user.cpp: In function ‘int main()’: user.cpp:128:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("rfinv.in", "r", stdin); ^ user.cpp:129:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("rfinv.out", "w", stdout); ^