Compilare: user.cpp: In function ‘int cb()’: user.cpp:30:26: warning: left shift count >= width of type [enabled by default] long long i=0,pas=1<<32; ^ user.cpp: In function ‘int main()’: user.cpp:47:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&n,&k); ^ user.cpp:50:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&v[i]); ^