Compilare: main.cpp: In function 'void euler(int)': main.cpp:28:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < adjList[x].size(); i++) ~~^~~~~~~~~~~~~~~~~~~ main.cpp:36:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < adjList[vecin].size(); i++) ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:27:13: warning: 'ind2' may be used uninitialized in this function [-Wmaybe-uninitialized] int ind1, ind2; ^~~~ main.cpp:27:7: warning: 'ind1' may be used uninitialized in this function [-Wmaybe-uninitialized] int ind1, ind2; ^~~~ main.cpp:20:7: warning: 'vecin' may be used uninitialized in this function [-Wmaybe-uninitialized] int vecin; ^~~~~