Borderou de evaluare (job #667326)

Compilare: main.cpp: In function 'int main()': main.cpp:28:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 28 | for (int j = r + 1; j < x.size(); j++) | ~~^~~~~~~~~~ main.cpp:34:32: warning: 'r2' may be used uninitialized in this function [-Wmaybe-uninitialized] 34 | swap(x[r], x[r2]); | ^ main.cpp:34:25: warning: 'r' may be used uninitialized in this function [-Wmaybe-uninitialized] 34 | swap(x[r], x[r2]); | ^