Compilare: user.cpp: In function ‘int main()’: user.cpp:15:17: warning: unused variable ‘aux’ [-Wunused-variable] int aux=p; ^ user.cpp:12:19: warning: unused variable ‘nr’ [-Wunused-variable] int sol=0,nr=0,p=2,pa=0; ^ user.cpp:7:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("preasimplu.in", "r", stdin); ^ user.cpp:8:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("preasimplu.out", "w", stdout); ^ user.cpp:9:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ user.cpp:11:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &n, &k, &mod); ^