Compilare: main.cpp: In function 'int sumFreq(std::vector<int>&)': main.cpp:14:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 14 | for(i=0;i<freq.size();++i) | ~^~~~~~~~~~~~ main.cpp: In function 'void DFS(int)': main.cpp:22:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | for(i=0;i<adjList[x].size();++i){ | ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:45:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | while(sumFreq(freq)<freq.size()){ | ~~~~~~~~~~~~~^~~~~~~~~~~~ main.cpp:46:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | for(i=0;i<freq.size();++i){ | ~^~~~~~~~~~~~ main.cpp:34:11: warning: unused variable 'j' [-Wunused-variable] 34 | int i,j; | ^