Eroare de compilare: main.cpp: In function 'int main()': main.cpp:16:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (k != s.size()) { ~~^~~~~~~~~~~ main.cpp:24:29: error: 'reverse' was not declared in this scope reverse(v.begin(), v.end()); ^ main.cpp:27:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (x == s[k] - '0') { k++; if (k == s.size()) break; } ~~^~~~~~~~~~~ Non zero exit status: 1