Compilare: user.cpp: In function ‘void search(I3)’: user.cpp:34:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<h[p].size(); ++i) { ^ user.cpp: In function ‘void insert(I3)’: user.cpp:44:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<h[p].size(); ++i) ^ user.cpp: In function ‘int main()’: user.cpp:51:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d",&n,&s); ^ user.cpp:53:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d",&v[i]); ^