Compilare: user.cpp: In function ‘int main()’: user.cpp:39:9: warning: variable ‘x’ set but not used [-Wunused-but-set-variable] int x,t=cbin(); ^ user.cpp:36:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&n,&q); ^ user.cpp:38:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&a[i],&b[i]); ^