Compilare: user.cpp: In function ‘int main()’: user.cpp:35:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d " ,&n,&k); ^ user.cpp:37:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%lf" ,&x); ^ user.cpp: In function ‘char cauta(double, int, int)’: user.cpp:25:5: warning: ‘max’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(max>=0) ^ user.cpp: In function ‘int main()’: user.cpp:25:5: warning: ‘max’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:10:12: note: ‘max’ was declared here double max; ^