Compilare: user.cpp: In function ‘int main()’: user.cpp:46:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < p.size(); i ++) ^ user.cpp:34:9: warning: unused variable ‘s’ [-Wunused-variable] int s = 0; ^ user.cpp:35:10: warning: unused variable ‘ok’ [-Wunused-variable] bool ok = 0; ^ user.cpp:37:9: warning: unused variable ‘mn’ [-Wunused-variable] int mn = 0; ^ user.cpp:38:9: warning: unused variable ‘nr2’ [-Wunused-variable] int nr2 = 0, nr3 = 0; ^ user.cpp:38:18: warning: unused variable ‘nr3’ [-Wunused-variable] int nr2 = 0, nr3 = 0; ^