Compilare: main.cpp: In function 'void BFS(int)': main.cpp:23:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < graf[curr].size(); i++) { ~~^~~~~~~~~~~~~~~~~~~ main.cpp:28:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < graf[x].size(); j++) { ~~^~~~~~~~~~~~~~~~ main.cpp:35:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < graf[curr].size(); j++) { ~~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:80:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < graf[x].size(); i++) { ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void BFS(int)': main.cpp:27:18: warning: 'pozchild' may be used uninitialized in this function [-Wmaybe-uninitialized] int pozcurr, pozchild; ^~~~~~~~ main.cpp:27:9: warning: 'pozcurr' may be used uninitialized in this function [-Wmaybe-uninitialized] int pozcurr, pozchild; ^~~~~~~