Compilare: main.cpp: In function 'void grafgen()': main.cpp:31:37: warning: unused variable 'ct' [-Wunused-variable] int i, j, k, nod, lv, cv, nodv, ct; ^~ main.cpp: In function 'void DFS(int)': main.cpp:52:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( i = 0; i < G[x].size(); ++i ) ~~^~~~~~~~~~~~~ main.cpp: In function 'void solve()': main.cpp:77:15: warning: unused variable 'l' [-Wunused-variable] int i, j, l, c; ^ main.cpp:77:18: warning: unused variable 'c' [-Wunused-variable] int i, j, l, c; ^ main.cpp:97:22: warning: 'jmax' may be used uninitialized in this function [-Wmaybe-uninitialized] out( imax, jmax ); ^ main.cpp:97:22: warning: 'imax' may be used uninitialized in this function [-Wmaybe-uninitialized]