/in/foo.cc: In function 'int main()':
/in/foo.cc:195:13: warning: statement has no effect [-Wunused-value]
    hashed[l]==1;
    ~~~~~~~~~^~~
/in/foo.cc: In function 'void heap_delete(node*, int)':
/in/foo.cc:105:19: warning: 'i' may be used uninitialized in this function [-Wmaybe-uninitialized]
    heap[i]=heap[j];
                   ^