Eroare de compilare: main.cpp: In function 'int main()': main.cpp:40:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<a.size()-1;i++) ~^~~~~~~~~~~ main.cpp:41:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=i+1;j<a.size();j++){ ~^~~~~~~~~ main.cpp:42:18: warning: unused variable 'found' [-Wunused-variable] bool found = false; ^~~~~ main.cpp:46:28: error: 'sort' was not declared in this scope sort(s.begin(), s.end()); ^ main.cpp:48:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1; i<s.size(); i++) ~^~~~~~~~~ Non zero exit status: 1