Compilare: user.cpp: In function ‘int main()’: user.cpp:75:56: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] if (viz[i]!=0 && viz[i]!=i) printf("%d ",viz[i]); ^ user.cpp: In function ‘void citire(int&)’: user.cpp:16:105: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] while(buff[pos] < '0' || buff[pos] > '9') if(++pos == 290000) fread(buff, 1, 290000, stdin), pos = 0; ^ user.cpp:21:67: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(++pos == 290000) fread(buff, 1, 290000, stdin), pos = 0; ^ user.cpp: In function ‘int main()’: user.cpp:52:34: 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, 290000, stdin); ^