Compilare: main.cpp: In function 'void DFS1(int)': main.cpp:28:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | for(int i=0; i<graph[nod].size(); i++) | ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void DFS2(int)': main.cpp:42:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 42 | for(int i=0; i<graph_tr[nod].size(); i++) | ~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:79:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 79 | for(int i=0; i<vminus.size(); i++) | ~^~~~~~~~~~~~~~ main.cpp:91:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 91 | for(int i=0; i<vplus.size(); i++) | ~^~~~~~~~~~~~~ main.cpp:102:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 102 | for(int i=0; i<vplus.size(); i++) | ~^~~~~~~~~~~~~ main.cpp:107:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 107 | for(int i=0; i<vminus.size(); i++) | ~^~~~~~~~~~~~~~ main.cpp:118:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 118 | for(int j=0; j<comp[i].size(); j++) | ~^~~~~~~~~~~~~~~