Compilare: main.cpp: In function 'void bkt(int)': main.cpp:85:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<immortals.size(); i++) ~^~~~~~~~~~~~~~~~~ main.cpp:91:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<immortals.size(); i++) ~^~~~~~~~~~~~~~~~~ main.cpp:114:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<immortals.size(); i++) ~^~~~~~~~~~~~~~~~~