Compilare: user.cpp: In function ‘int main()’: user.cpp:34:33: warning: unused variable ‘ct’ [-Wunused-variable] int y, s, i1, m, l11, l21,ct,i, j, k1, z; ^ user.cpp:159:22: warning: ‘l21’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout <<l11<<' '<<l21<<' '<<k1; ^ user.cpp:159:12: warning: ‘l11’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout <<l11<<' '<<l21<<' '<<k1; ^ user.cpp:50:10: warning: ‘k1’ may be used uninitialized in this function [-Wmaybe-uninitialized] if((k1-1)%2==0) ^