Compilare: main.cpp: In function 'int main()': main.cpp:38:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < sub.size(); i++) ~~^~~~~~~~~~~~ main.cpp:41:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i < sub.size(); i++) ~~^~~~~~~~~~~~ main.cpp:13:10: warning: variable 'pare' set but not used [-Wunused-but-set-variable] bool pare = true; ^~~~ main.cpp:14:10: warning: unused variable 'impare' [-Wunused-variable] bool impare = true; ^~~~~~