Compilare: main.cpp: In function 'void dfs(int)': main.cpp:31:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for(int i=0; i<graf[nod].size(); i++) | ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'void dfsTrans(int)': main.cpp:47:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | for(int i=0; i<grafTrans[nod].size(); i++) | ~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'bool potCuplaOptim(int, int)': main.cpp:77:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 77 | for (int j = 0; j < compConex[conexAdus].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:191:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 191 | for(int i=0; i<sol.size(); i++) | ~^~~~~~~~~~~