Compilare: user.cpp: In function ‘int dijkstra(int, int)’: user.cpp:21:9: warning: unused variable ‘j’ [-Wunused-variable] int j; ^ user.cpp:23:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:51:42: warning: overflow in implicit constant conversion [-Woverflow] if (a[i][j]==0 && i!=j) a[i][j]=oo; ^ user.cpp:63:15: warning: overflow in implicit constant conversion [-Woverflow] min1=oo; ^