clear
	renamed:    ch6/Young_tableau.h -> ch06/Young_tableau.h
	renamed:    ch6/ch6.pro -> ch06/ch6.pro
	renamed:    ch6/d_ary_heap.h -> ch06/d_ary_heap.h
	renamed:    ch6/heap.h -> ch06/heap.h
	renamed:    ch6/heap_build.h -> ch06/heap_build.h
	renamed:    ch6/main.cpp -> ch06/main.cpp
	renamed:    ch6/priority_queue.h -> ch06/priority_queue.h
	renamed:    ch6/queue.h -> ch06/queue.h
	renamed:    ch6/stack.h -> ch06/stack.h