Compilare: main.cpp: In function 'void solvebrute(int)': main.cpp:56:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | for (int i = 0; i < poz[color].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~ main.cpp:57:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | for (int j = i + 1; j < poz[color].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int lca(int, int)': main.cpp:39:9: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized] 39 | int ans, i; | ^~~