Compilare: main.cpp: In function 'void bfs(int)': main.cpp:53:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<=Edge[nod].size();k++) ~^~~~~~~~~~~~~~~~~~ main.cpp:45:9: warning: unused variable 'i' [-Wunused-variable] int i,nod; ^ main.cpp: In function 'void citire()': main.cpp:40:40: warning: 'c' may be used uninitialized in this function [-Wmaybe-uninitialized] Edge[y].push_back(make_pair(x, -c)); ^~ main.cpp:17:12: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized] int x, y, c, nr, cnt; ^ main.cpp:17:9: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized] int x, y, c, nr, cnt; ^