Compilare: main.cpp: In function 'void dfs(int)': main.cpp:51:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < G[k].size(); i++) ~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:79:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < G[1].size(); i++) ~~^~~~~~~~~~~~~ main.cpp:88:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < G[1].size(); i++) ~~^~~~~~~~~~~~~ main.cpp:89:9: warning: 'pozmax1' may be used uninitialized in this function [-Wmaybe-uninitialized] if(i != pozmax1) ^~