Compilare: user.cpp: In function ‘int main()’: user.cpp:10:12: warning: unused variable ‘nr’ [-Wunused-variable] int n, nr, l, pare, impare, sum, sol; ^ user.cpp:10:19: warning: unused variable ‘pare’ [-Wunused-variable] int n, nr, l, pare, impare, sum, sol; ^ user.cpp:10:25: warning: unused variable ‘impare’ [-Wunused-variable] int n, nr, l, pare, impare, sum, sol; ^ user.cpp:10:33: warning: unused variable ‘sum’ [-Wunused-variable] int n, nr, l, pare, impare, sum, sol; ^ user.cpp:10:38: warning: unused variable ‘sol’ [-Wunused-variable] int n, nr, l, pare, impare, sum, sol; ^ user.cpp:11:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^