Compilare: user.cpp: In function ‘int main()’: user.cpp:44:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(Max<H[X].size()) ^ user.cpp:50:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(Max==H[X].size()) ^ user.cpp:54:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<H[ind].size();i++) ^ user.cpp:36:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d",&N); ^ user.cpp:39:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d",&K); ^