Compilare: user.cpp: In function ‘void solve()’: user.cpp:72:13: warning: unused variable ‘l’ [-Wunused-variable] int i,j,l,pl,j1;Lista aux; ^ user.cpp: In function ‘void read()’: user.cpp:33:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(cin,"%d %d",&n,&k); ^ user.cpp:38:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(cin,"%d %d",&x,&y); ^ user.cpp: In function ‘void solve()’: user.cpp:94:37: warning: ‘pl’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(cout,"%d",sol[start][pl]); ^