Compilare: user.cpp: In function ‘void check(int)’: user.cpp:26:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (comisie.size() < dim) ^ user.cpp: In function ‘void read_and_solve()’: user.cpp:42:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:45:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &nr[i]); ^ user.cpp:50:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &risc); ^