Compilare: user.cpp: In function ‘void eulerparc(int)’: user.cpp:88:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(; i<neighbors[nod].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:22:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&N); ^ user.cpp:24:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&nod); ^ user.cpp:29:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&nod); ^