Compilare: main.cpp: In function 'void calc_dp(int)': main.cpp:22:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | for (int i = 0; i < dp[it].size(); i++) | ~~^~~~~~~~~~~~~~~ main.cpp:28:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | else if (L - change[nod][0] >= dp[nod].size()) | ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~ main.cpp:35:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | else if (L - change[nod][1] >= dp[nod].size()) | ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~ main.cpp:47:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | if (L - a[nod] == dp[nod].size()) | ~~~~~~~~~~~^~~~~~~~~~~~~~~~~ main.cpp:49:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | if (L - a[nod] < dp[nod].size()) { | ~~~~~~~~~~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:98:22: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 98 | if (dp[0].size() == L) | ~~~~~~~~~~~~~^~~~