Compilare: user.cpp: In function ‘void dfs(int, int)’: user.cpp:19:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < v[nod].size(); i++){ ^ user.cpp:39:72: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(d[vecin][ii] < d[maxf[nod][j].f ][maxf[nod][j].s]){ ^ user.cpp:50:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < v[nod].size(); i++){ ^ user.cpp:54:70: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(e[vecin][0] > d[ maxf[nod][j].f ][ maxf[nod][j].s ] + 2 && maxf[nod][j].f != vecin){ ^ user.cpp:56:71: warning: array subscript has type ‘char’ [-Wchar-subscripts] e[vecin][0] = d[ maxf[nod][j].f ][ maxf[nod][j].s ] + 2; ^ user.cpp:59:74: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(e[vecin][1] > d[ maxf[nod][j].f ][ maxf[nod][j].s ] + 2 && maxf[nod][j].f != vecin){ ^ user.cpp:60:75: warning: array subscript has type ‘char’ [-Wchar-subscripts] e[vecin][1] = d[ maxf[nod][j].f ][ maxf[nod][j].s ] + 2; ^ user.cpp: In function ‘void dfs2(int, int)’: user.cpp:80:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[nod].size(); i++){ ^