Compilare: main.cpp: In function 'std::vector<std::vector<int> > royFloyd(std::vector<std::vector<int> >, int)': main.cpp:25:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | for (int i = 1; i < distante.size(); ++i) { | ~~^~~~~~~~~~~~~~~~~~ main.cpp:26:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | for (int j = 1; j < distante.size(); j++) { | ~~^~~~~~~~~~~~~~~~~ main.cpp:34:23: 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 k = 1; k < distante.size(); k++) { | ~~^~~~~~~~~~~~~~~~~ main.cpp:35:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for (int i = 1; i < distante.size(); i++) { | ~~^~~~~~~~~~~~~~~~~ main.cpp:36:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for (int j = 1; j < distante.size(); j++) { | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'void afisare(std::vector<std::vector<int> >)': main.cpp:51:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 51 | for(int i = 1; i < matrice.size(); ++i) { | ~~^~~~~~~~~~~~~~~~ main.cpp:52:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 52 | for (int j = 1; j < matrice.size(); ++j) { | ~~^~~~~~~~~~~~~~~~