Compilare: main.cpp: In function 'void BFS(int)': main.cpp:31:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<nodes[node].size(); i++) ~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void BFS_back(int, int)': main.cpp:44:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<nodes[node].size(); i++) ~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void write()': main.cpp:54:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<orderNumbers.size(); i++) ~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void resolve()': main.cpp:65:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=1; j<nodesApp[i].size(); j++) ~^~~~~~~~~~~~~~~~~~~ main.cpp:74:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<orderNumbers.size()-1; i++) ~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:75:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=i+1; j<orderNumbers.size(); j++) ~^~~~~~~~~~~~~~~~~~~~