Compilare: main.cpp: In function 'bool bipartit(int)': main.cpp:25:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | for (int i = 0; i < v[x].size(); i++) { | ~~^~~~~~~~~~~~~ main.cpp:23:13: warning: unused variable 'cx' [-Wunused-variable] 23 | int cx = q.front().second; | ^~ main.cpp: In function 'bool cuplaj(int)': main.cpp:42:23: 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 < v[x].size(); i++) { | ~~^~~~~~~~~~~~~ main.cpp:50:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | for (int i = 0; i < v[x].size(); i++) { | ~~^~~~~~~~~~~~~