Compilare: user.cpp: In member function ‘int Hash::Find(int)’: user.cpp:23:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < hVec[key].size(); i++) { ^ user.cpp: In function ‘void backtracking(int)’: user.cpp:70:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j < pList[i].size() && pTaken.Find(pList[i][j]) == -1) { ^ user.cpp:73:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j == pList[i].size()) { ^ user.cpp:74:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < pList[i].size(); j++) { ^