Compilare: main.cpp: In function 'void BFS(int)': main.cpp:33:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void DFS(int, int, int, int)': main.cpp:77:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void Solve()': main.cpp:109:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < G[root].size(); j++){ ~~^~~~~~~~~~~~~~~~ main.cpp:121:13: warning: unused variable 'node' [-Wunused-variable] int node = D[i]; ^~~~ main.cpp:119:18: warning: unused variable 'leftVal' [-Wunused-variable] int Max = 1, leftVal = 0; ^~~~~~~