Compilare: main.cpp: In function 'void DFS(int)': main.cpp:24:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for(int j = 0; j < edges[curr].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void DFSkosaraju(int)': main.cpp:40:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for(int j = 0; j < reversed[curr].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:90:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 90 | for(i = 0; i < solution.size(); i++) | ~~^~~~~~~~~~~~~~~~~ main.cpp:92:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 92 | for(int j = 0; j < solution[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~