Compilare: user.cpp: In function ‘void afis()’: user.cpp:7:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=g;i++) ^ user.cpp:10:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=g;i++) ^ user.cpp: In function ‘int main()’: user.cpp:24:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%u%u",&n,&g); ^ user.cpp:27:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%u",&x); ^