Compilare: user.cpp: In function ‘int main()’: user.cpp:56:9: warning: unused variable ‘u’ [-Wunused-variable] int u=k,atpos=-1; ^ user.cpp:56:13: warning: unused variable ‘atpos’ [-Wunused-variable] int u=k,atpos=-1; ^~~~~ user.cpp:96:26: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] recurent(pos,poz,l,c); ^ user.cpp:96:26: warning: ‘pos’ may be used uninitialized in this function [-Wmaybe-uninitialized]