Compilare: user.cpp: In function ‘int main()’: user.cpp:93:13: warning: unused variable ‘i’ [-Wunused-variable] int nri=0, i; ^ user.cpp: In function ‘int find_nxt(int)’: user.cpp:85:11: warning: ‘p’ may be used uninitialized in this function [-Wmaybe-uninitialized] nxt[x]=p; ^ user.cpp: In function ‘int main()’: user.cpp:85:11: warning: ‘p’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:67:17: note: ‘p’ was declared here int x=n, r=-1, p, y; ^