Compilare: main.cpp: In function 'int main()': main.cpp:37:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'long long unsigned int' [-Wsign-compare] 37 | if (cand1 <= m && std::abs(x - cand1) < std::abs(x - ans)) ans = cand1; | ~~~~~~^~~~ main.cpp:38:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'long long unsigned int' [-Wsign-compare] 38 | if (cand2 <= m && std::abs(x - cand2) < std::abs(x - ans)) ans = cand2; | ~~~~~~^~~~