lab_trees feedback for wangyihan.22
g++ -std=c++11 -g -O0 -pedantic -Wall -Werror -Wfatal-errors -Wextra -Wno-unused-parameter -Wno-unused-variable -MMD -MP -c main.cpp -o .objs/main.o
g++ -std=c++11 -g -O0 -pedantic -Wall -Werror -Wfatal-errors -Wextra -Wno-unused-parameter -Wno-unused-variable -MMD -MP -c coloredout.cpp -o .objs/coloredout.o
g++ .objs/main.o .objs/coloredout.o -std=c++11 -lpthread -o treefun
g++ -std=c++11 -g -O0 -pedantic -Wall -Werror -Wfatal-errors -Wextra -Wno-unused-parameter -Wno-unused-variable -MMD -MP -c -fsanitize=address -fno-omit-frame-pointer main.cpp -o .objs/main-asan.o
g++ .objs/main-asan.o .objs/coloredout.o -std=c++11 -lpthread -fsanitize=address -fno-omit-frame-pointer -o treefun-asan
g++ -std=c++11 -g -O0 -pedantic -Wall -Werror -Wfatal-errors -Wextra -Wno-unused-parameter -Wno-unused-variable -MMD -MP -c tests/basic.cpp
g++ basic.o -std=c++11 -lpthread -o test

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
test is a Catch v2.13.9 host application.
Run with -? for options

-------------------------------------------------------------------------------
test_isOrdered
-------------------------------------------------------------------------------
tests/basic.cpp:54
...............................................................................

tests/basic.cpp:78: FAILED:
  REQUIRE( tree2.isOrdered() == true )
with expansion:
  false == true

-------------------------------------------------------------------------------
test_mirror
-------------------------------------------------------------------------------
tests/basic.cpp:81
...............................................................................

tests/basic.cpp:30: FAILED:
  REQUIRE( a[i] == b[b.size()-1-i] )
with expansion:
  0 == 93

-------------------------------------------------------------------------------
test_printPaths
-------------------------------------------------------------------------------
tests/basic.cpp:111
...............................................................................

tests/basic.cpp:36: FAILED:
  REQUIRE( a.size() == b.size() )
with expansion:
  5 == 0

-------------------------------------------------------------------------------
test_sumDistances
-------------------------------------------------------------------------------
tests/basic.cpp:147
...............................................................................

tests/basic.cpp:160: FAILED:
  REQUIRE( 10 == tree.sumDistances() )
with expansion:
  10 == -1

===============================================================================
test cases: 5 | 1 passed | 4 failed
assertions: 7 | 3 passed | 4 failed


Total: 0