Compilare: main.cpp: In function 'std::vector<std::vector<std::pair<int, int> > > lisAdiacIndexMuchii(std::vector<std::vector<int> >&)': main.cpp:28:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | for(int i = 1; i < lisAdiacenta.size(); ++i) { | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:29:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for(int j = 0; j < lisAdiacenta[i].size(); ++j) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:34:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for(int i = 1; i < lisAdiacenta.size(); ++i) { | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:35:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for(int j = 0; j < lisAdiacenta[i].size(); ++j) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:39:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(int k = 0; k < lisAdiacenta[lisAdiacenta[i][j]].size(); ++k) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'std::vector<int> cicluEuler(std::vector<std::vector<std::pair<int, int> > >&)': main.cpp:60:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for(int i = 1; i < lisAdiacenta.size(); ++i) { | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:100:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 100 | for(int i = 0; i < ciclu.size()-1; ++i) { | ~~^~~~~~~~~~~~~~~~