Compilare: user.cpp: In function ‘int fii(int)’: user.cpp:15:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<l[k].size();i++) ^ user.cpp: In function ‘int memo(int, int)’: user.cpp:36:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<l[nod].size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:49:11: warning: variable ‘j’ set but not used [-Wunused-but-set-variable] int i,j,x,y,start,sum=0; ^ user.cpp:50:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&n,&k); ^ user.cpp:53:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&x,&y); ^