Compilare: main.cpp: In function 'bool cup(int)': main.cpp:91:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<g[node].size();i++) ~^~~~~~~~~~~~~~~ main.cpp:102:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<g[node].size();i++) ~^~~~~~~~~~~~~~~ main.cpp: In function 'void reinit()': main.cpp:119:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<g[i].size();j++) ~^~~~~~~~~~~~ main.cpp: In function 'bool cup2(int)': main.cpp:135:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<gt[node].size();i++) ~^~~~~~~~~~~~~~~~ main.cpp:146:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<gt[node].size();i++) ~^~~~~~~~~~~~~~~~