Compilare: main.cpp: In function 'void topologicalSort(int)': main.cpp:16:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<edge[node].size(); i++){ ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void dijkstra(int, int)': main.cpp:34:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<edge[node].size(); i++){ ~^~~~~~~~~~~~~~~~~~ main.cpp:37:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (pq[next].size() == K){ ~~~~~~~~~~~~~~~~^~~~