Compilare: user.cpp: In function ‘void apm()’: user.cpp:25:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=sizeof(t);i++) ^ user.cpp: In function ‘void dfs(int)’: user.cpp:80:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < v[nod].size(); i++ ) ^ user.cpp: In function ‘void apm()’: user.cpp:26:16: warning: iteration 10004u invokes undefined behavior [-Waggressive-loop-optimizations] t[i]=-1; ^ user.cpp:25:5: note: containing loop for(int i=1;i<=sizeof(t);i++) ^