Compilare: user.cpp: In function ‘unsigned int Cerinta2(int, unsigned int)’: user.cpp:18:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(x!=cx) ^ user.cpp: In function ‘int main()’: user.cpp:31:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%u",&n,&x); ^