Compilare: user.cpp: In function ‘int main()’: user.cpp:8:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&n); ^ user.cpp:9:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&x); ^ user.cpp:15:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&x); ^ user.cpp:34:52: warning: ‘maxend’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fout,"%d %d %d",maxsp,maxbeg+1,maxend+1); ^ user.cpp:34:52: warning: ‘maxbeg’ may be used uninitialized in this function [-Wmaybe-uninitialized]