Compilare: user.cpp: In function ‘int main()’: user.cpp:50:27: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf(fo,"%I64d",sum); ^ user.cpp: In function ‘int citeste()’: user.cpp:19:39: 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,DIM,fi),poz=0; ^ user.cpp:24:39: 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,DIM,fi),poz=0; ^