Compilare: main.cpp: In function 'void Prim(int)': main.cpp:58:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<pereche>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | for(int j = 0; j < v[muchie.varf].size(); j ++) | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:88:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<verticle>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 88 | for(i = 0; i < muchii_apm.size(); i ++) | ~~^~~~~~~~~~~~~~~~~~~