add bar drawing, use pointers more

Makefile

@@ -3,11 +3,11 @@ MAKEFLAGS := --jobs=16
 
 # compiling with C++26
 CXXFLAGS := -std=c++2c -Ofast -fdiagnostics-color=always -Iinclude
-# CXXFLAGS += -MMD -MP 
+CXXFLAGS += -MMD -MP
 
 SOURCES := main.cpp $(wildcard src/*.cpp)
 OBJECTS := $(SOURCES:.cpp=.o)
-# DEPS := $(OBJECTS:.o=.d)
+DEPS := $(OBJECTS:.o=.d)
 
 TEST_SRC := test.cpp $(wildcard src/*.cpp)
 TEST_OBJS := $(TEST_SRC:.cpp=.o)
@@ -24,7 +24,7 @@ test: $(TEST_OBJS)
 %.o: %.cpp
 	g++ $(CXXFLAGS) -c $< -o $@
 
-# -include $(DEPS)
+-include $(DEPS)
 
 .PHONY: clean
 clean: