Compilare: main.cpp: In function 'bool continua()': main.cpp:57:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < a.size(); i ++) ~~^~~~~~~~~~ main.cpp:60:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < b.size(); i ++) ~~^~~~~~~~~~ main.cpp: In function 'void bagaSt(int)': main.cpp:77:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < a.size() - nr; i ++) ~~^~~~~~~~~~~~~~~ main.cpp:81:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = a.size() - nr; i < a.size(); i ++) ~~^~~~~~~~~~ main.cpp: In function 'void elim()': main.cpp:93:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < a.size(); i ++) ~~^~~~~~~~~~ main.cpp:100:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < a.size(); i ++) ~~^~~~~~~~~~