/in/foo.cc:5:13: error: expected primary-expression before ',' token
 int p[1005]=,eid=1,n,m,top;
             ^
/in/foo.cc: In function 'void insert(int, int)':
/in/foo.cc:11:4: error: 'eid' was not declared in this scope
  e[eid].v=v;
    ^~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:33:16: error: 'n' was not declared in this scope
  scanf("%d%d",&n,&m);
                ^
/in/foo.cc:33:19: error: 'm' was not declared in this scope
  scanf("%d%d",&n,&m);
                   ^