Compilare: user.cpp: In function ‘int main()’: user.cpp:139:9: warning: unused variable ‘nri’ [-Wunused-variable] int nri = 0,nrd = 0; ^ user.cpp:139:17: warning: unused variable ‘nrd’ [-Wunused-variable] int nri = 0,nrd = 0; ^ user.cpp: In function ‘void scan(int&)’: user.cpp:117:59: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(++poz == DIM) fread(buffer,1,DIM,stdin),poz = 0; ^ user.cpp:122:46: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer,1,DIM,stdin),poz = 0; ^ user.cpp: In function ‘int main()’: user.cpp:130:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("grader_test10.in","r",stdin); ^ user.cpp:131:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hashuri.out","w",stdout); ^