Compilare: main.cpp: In function 'int main()': main.cpp:23:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < s.size(); i++) ~~^~~~~~~~~~ main.cpp:28:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < s.size() - 1; i++) { ~~^~~~~~~~~~~~~~ main.cpp:29:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (s[i] == 'B' and s[i + 1] == 'S' and i != s.size() - 2) ~~^~~~~~~~~~~~~~~ main.cpp:33:32: warning: 'poz' may be used uninitialized in this function [-Wmaybe-uninitialized] swap(s[s.size() - 1], s[poz + 1]); ~~~~^~~