Compilare: main.cpp: In function 'int main()': main.cpp:52:23: 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] 52 | for (int i=1;i<poz[cx].size();i++) { | ~^~~~~~~~~~~~~~~ main.cpp:61:30: warning: 'best' may be used uninitialized [-Wmaybe-uninitialized] 61 | dp[i]=dp[best]+(i-best)*mx; | ~~^~~~~~ main.cpp:53:27: note: 'best' was declared here 53 | int l=0,r=i-1,best,mx=query(poz[cx][i-1],poz[cx][i]); | ^~~~