Compilare: main.cpp: In function 'int main()': main.cpp:54:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 1 ; i < sme.size() ; i++) ~~^~~~~~~~~~~~ main.cpp:61:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 1 ; i < work.size() ; i++) ~~^~~~~~~~~~~~~ main.cpp:67:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 1 ; i < work.size() ; i++) ~~^~~~~~~~~~~~~ main.cpp:71:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 1 ; i < work.size() ; i++) ~~^~~~~~~~~~~~~ main.cpp:74:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 1 ; i < sme.size() ; i++) ~~^~~~~~~~~~~~ main.cpp:25:11: warning: unused variable 'j' [-Wunused-variable] int i,j; ^