Compilare: main.cpp: In function 'int main()': main.cpp:39:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for (int k = 0; k<fact[i].size(); ++k) | ~^~~~~~~~~~~~~~~ main.cpp:49:9: warning: unused variable 'total' [-Wunused-variable] 49 | int total = (long long)(b-a+1) * (long long)(b-a) / (long long)2; | ^~~~~ main.cpp:50:9: warning: unused variable 'bad' [-Wunused-variable] 50 | int bad = dp[b] - dp[a-1] - (dpa[b][a-1] - dpa[a-1][a-1]); | ^~~