Compilare: main.cpp: In function 'void solvebrute(int)': main.cpp:55:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for (int i = 0; i < poz[color].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~ main.cpp:56:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | for (int j = i + 1; j < poz[color].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:117:9: warning: unused variable 'bucket' [-Wunused-variable] 117 | int bucket = sqrt(n); | ^~~~~~ main.cpp: In function 'int lca(int, int)': main.cpp:38:9: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized] 38 | int ans, i; | ^~~