Compilare: user.cpp:11:38: warning: left shift count >= width of type [enabled by default] long long T=0,C[MaxN],L[MaxN],Min=1<<62,F[MaxN],B[MaxN]; ^ user.cpp: In function ‘int main()’: user.cpp:18:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d",&N); ^ user.cpp:22:43: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%lld %lld",&C[i],&L[i]); ^