Compilare: main.cpp: In function 'void backTracking(long long int, long long int, std::vector<long long int>&)': main.cpp:11:9: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 11 | if (k < v.size()) { | ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:38:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | for (int i = 0; i < sub.size(); i++) { | ~~^~~~~~~~~~~~ main.cpp:44:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | for (int i = 0; i < minVal.size(); i++) { | ~~^~~~~~~~~~~~~~~ main.cpp:49:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | for (int i = 1; i < intervals.size(); i++) | ~~^~~~~~~~~~~~~~~~~~ main.cpp:21:13: warning: unused variable 'p2n' [-Wunused-variable] 21 | const int p2n = pow(2, n); | ^~~