Compilare: user.cpp: In function ‘int putere(int)’: user.cpp:16:13: warning: unused variable ‘cat1’ [-Wunused-variable] int cat1=(cat*cat)%MOD; ^ user.cpp: In function ‘void bico(int)’: user.cpp:25:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0;j<v[x].size();j++) ^ user.cpp: In function ‘int main()’: user.cpp:55:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (f,"%d%d",&n,&m); ^ user.cpp:59:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (f,"%d%d",&x,&y); ^