Compilare: main.cpp: In function 'double prim(std::vector<std::pair<int, int> >&)': main.cpp:23:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | for(int i = 1; i < coord.size(); i++) | ~~^~~~~~~~~~~~~~ main.cpp:26:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | for(int i = 0; i < coord.size()-1; i++){ | ~~^~~~~~~~~~~~~~~~ main.cpp:30:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(int j = 0; j < coord.size(); j++){ | ~~^~~~~~~~~~~~~~ main.cpp:40:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for(int j = 0; j < coord.size(); j++) | ~~^~~~~~~~~~~~~~ main.cpp:28:13: warning: 'y' may be used uninitialized [-Wmaybe-uninitialized] 28 | int y; | ^