Compilare: user.cpp: In function ‘int main()’: user.cpp:64:29: warning: unused variable ‘copiei’ [-Wunused-variable] int i, j, k, l, verif3, copiei, copiej; ^ user.cpp:64:37: warning: unused variable ‘copiej’ [-Wunused-variable] int i, j, k, l, verif3, copiei, copiej; ^ user.cpp:62:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("plantatii.in", "r", stdin); ^ user.cpp:63:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("plantatii.out", "w", stdout); ^