Compilare: user.cpp: In function ‘void ciur()’: user.cpp:71:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j; ^ user.cpp:72:9: warning: unused variable ‘a’ [-Wunused-variable] int a; ^ user.cpp: In function ‘int main()’: user.cpp:103:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(k1=1;k1<=t;++k1) ^ user.cpp:112:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int q=1; q<d ; ++q) ^ user.cpp:128:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=2; i<=n; ++i) ^