Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:28:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[nod].size();i++) if(tata[v[nod][i]]==0) dfs(v[nod][i]); ^ user.cpp:29:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<g[nod].size();i++) if(tata[g[nod][i]]==0) dfs(g[nod][i]); ^ user.cpp: In function ‘void pasul1()’: user.cpp:45:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,a,b; ^ user.cpp:45:13: warning: unused variable ‘a’ [-Wunused-variable] int i,j,a,b; ^ user.cpp:45:15: warning: unused variable ‘b’ [-Wunused-variable] int i,j,a,b; ^ user.cpp: In function ‘void pasul2()’: user.cpp:75:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<p.size() && j<m.size()) ^ user.cpp:75:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<p.size() && j<m.size()) ^ user.cpp:80:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j<m.size() && tatic(m[j].first)==tatic(p[i].first)) j++; ^ user.cpp:110:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<r2.size();i++) ^