Compilare: user.cpp: In function ‘int dinamic()’: user.cpp:23:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(q=0;q<stab[sir[i]-'a'].size();q++) M[i][i].push_back(stab[sir[i]-'a'].at(q)); ^ user.cpp:30:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(p=0;p<M[i][k].size();p++) ^ user.cpp:31:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(q=0;q<M[k+1][i+j].size();q++) ^ user.cpp:32:77: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(w=0;w<instab[M[i][k].at(p)][M[k+1][i+j].at(q)].size();w++) ^ user.cpp:46:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<M[0][n-1].size();i++) if(M[0][n-1].at(i)+'A'=='S') return 1; ^