Compilare: main.cpp: In function 'int main()': main.cpp:123:22: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(f,1,MAX,IN); ^ main.cpp: In function 'void Read(int&)': main.cpp:58:36: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(f,MAX,1,IN),pos=0; ^ main.cpp:64:36: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(f,MAX,1,IN),pos=0; ^