Compilare: user.cpp: In function ‘void dikjstra()’: user.cpp:30:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=2;i<=n;i++) d[i]=oo; ^ user.cpp:31:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=n;i++){ ^ user.cpp:33:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=1;j<=n;j++) ^ user.cpp:38:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(d[nod]+cost<d[vecin]) d[vecin]=d[nod]+cost; ^ user.cpp:38:21: warning: ‘nod’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(d[nod]+cost<d[vecin]) d[vecin]=d[nod]+cost; ^