Compilare: main.cpp: In lambda function: main.cpp:148:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(edges[was].size() >= k - 1) ~~~~~~~~~~~~~~~~~~^~~~~~~~ main.cpp:156:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(edges[was].size() >= k - 1) ~~~~~~~~~~~~~~~~~~^~~~~~~~ main.cpp:158:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(edges[C].size() >= k - 1) ~~~~~~~~~~~~~~~~^~~~~~~~ main.cpp: In lambda function: main.cpp:164:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(edges[comp[a]].size() >= k - 1) ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~ main.cpp:166:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(edges[comp[b]].size() >= k - 1) ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~ main.cpp:175:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(edges[comp[a]].size() >= k - 1) ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~