Compilare: main.cpp: In function 'int main()': main.cpp:46:33: 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] 46 | for(ll j = 0; j < v.size(); j++){ | ~~^~~~~~~~~~ main.cpp:48:30: 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] 48 | if(j + 1 < v.size()) t[j] = (t[j] + (j + 1) * v[j + 1] % mod) % mod; | ~~~~~~^~~~~~~~~~