buffer demo
buffer demo v1

	new file:   Debug/PatternMine.exe
	new file:   Debug/PatternMine.ilk
	new file:   Debug/SomeProblemsOfCpp.bsc
	new file:   Debug/SomeProblemsOfCpp.exe
	new file:   Debug/SomeProblemsOfCpp.ilk
	new file:   Debug/data.txt
	new file:   Debug/studycpp.bsc
	new file:   Debug/studycpp.exe
	new file:   Debug/studycpp.ilk
delete debug
lis dp
buffer stable
Merge branch 'dev_buffer'

Conflicts:
	SomeProblemsOfCpp/SomeProblemsOfCpp.vcxproj.filters