Compilare: main.cpp: In function 'int main()': main.cpp:82:19: warning: suggest parentheses around assignment used as truth value [-Wparentheses] 82 | if (answer[0] = -1) { main.cpp:85:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 85 | for (int i = 0; i < answer.size() - 1; ++i) { | ~~^~~~~~~~~~~~~~~~~~~