Compilare: user.cpp: In function ‘int main()’: user.cpp:23:12: warning: unused variable ‘MAX’ [-Wunused-variable] long long MAX=(N/2)*(2*M-1)+(N%2)*M; ^ user.cpp:22:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%lld%lld%lld",&N,&M,&Q); ^ user.cpp:27:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%lld%lld",&X,&Y); ^