Compilare: user.cpp: In function ‘int main()’: user.cpp:10:17: warning: unused variable ‘div’ [-Wunused-variable] int p,q,m=0,div,past,keep,val; ^ user.cpp:10:21: warning: unused variable ‘past’ [-Wunused-variable] int p,q,m=0,div,past,keep,val; ^ user.cpp:11:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d",&p,&q); ^