Compilare: main.cpp: In function 'void dijkstra(int)': main.cpp:51:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[currnode].size(); i++) ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:60:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[currnode].size(); i++) ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'bool BFS()': main.cpp:85:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[node].size(); i++) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void Flow()': main.cpp:101:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[N].size(); i++) ~~^~~~~~~~~~~~~ main.cpp: In function 'bool solve(double)': main.cpp:141:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < v[i].size(); j++) ~~^~~~~~~~~~~~~