Compilare: user.cpp: In function ‘int main()’: user.cpp:24:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < strBuff.size(); i++) { ^ user.cpp:25:31: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (indices[strBuff[i]].empty()) ^ user.cpp:27:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] indices[strBuff[i]].push(i); ^ user.cpp:32:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (indices[cand].empty()) ^ user.cpp:37:74: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (indices[i].size() && indices[i].back() < indices[cand].front()) ^ user.cpp:43:39: warning: array subscript has type ‘char’ [-Wchar-subscripts] int poz = indices[cand].front(); ^ user.cpp:44:40: warning: array subscript has type ‘char’ [-Wchar-subscripts] clearQueue(indices[cand]); ^ user.cpp:20:44: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("calandrinon.out", "w", stdout); ^