Compilare: main.cpp: In function 'long long int FMAXIM(int)': main.cpp:50:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < G[k].size(); i++) ~~^~~~~~~~~~~~~ main.cpp:59:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < G[k].size(); i++) ~~^~~~~~~~~~~~~ main.cpp: In function 'void dfs(int)': main.cpp:78:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < G[k].size(); i++) ~~^~~~~~~~~~~~~