Compilare: main.cpp: In function 'void printSecondTask(unsigned int, unsigned int)': main.cpp:24:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (freq[node] >= K) { ~~~~~~~~~~~^~~~ main.cpp: In function 'void removeFromGroup(unsigned int, unsigned int)': main.cpp:41:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (!isVisited[node] && freq[node] < K) { ~~~~~~~~~~~^~~ main.cpp: In function 'int main()': main.cpp:64:56: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (!isVisited[node] && freq[node] > 0 && freq[node] < K) { ~~~~~~~~~~~^~~