prepare (1/3): 
finished

make (2/3): 
g++ -g -Wall -O2 -o main.o -c main.cpp 
In file included from main.cpp:5:0:
unsorted_heap.h: In instantiation of 'const TYPE& unsorted_heap<TYPE, COMP>::get_min() const [with TYPE = point*; COMP = compare_t]':
main.cpp:249:1:   required from here
unsorted_heap.h:87:10: warning: reference to local variable 'min' returned [-Wreturn-local-addr]
     TYPE min=data[size-1];
          ^~~
g++ -g -Wall -O2 -o main main.o
finished

clean (3/3): 
finished

all task finished, build successfully