Compilare: user.cpp: In function ‘int main()’: user.cpp:40:19: warning: unused variable ‘i’ [-Wunused-variable] long long n,k,i,j,l,inc,sf,mini; ^ user.cpp:40:21: warning: unused variable ‘j’ [-Wunused-variable] long long n,k,i,j,l,inc,sf,mini; ^ user.cpp:40:23: warning: unused variable ‘l’ [-Wunused-variable] long long n,k,i,j,l,inc,sf,mini; ^ user.cpp: In function ‘void cit(long long int&)’: user.cpp:20:35: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff,1,LIM,fila); ^ user.cpp:31:35: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff,1,LIM,fila); ^