File list (Check if you may need any files):
2-1 众数问题
............\Debug
............\.....\MyTimer.obj
............\.....\vc60.idb
............\.....\vc60.pdb
............\.....\众数问题.obj
............\.....\众数问题.pch
............\.....\众数问题.pdb
............\MyTimer.cpp
............\MyTimer.h
............\input.txt
............\output.txt
............\众数问题.cpp
............\众数问题.dsp
............\众数问题.dsw
............\众数问题.ncb
............\众数问题.opt
............\众数问题.plg
2-3
...\Debug
...\.....\MyTimer.obj
...\.....\vc60.idb
...\.....\vc60.pdb
...\.....\半数集问题.exe
...\.....\半数集问题.ilk
...\.....\半数集问题.obj
...\.....\半数集问题.pch
...\.....\半数集问题.pdb
...\MyTimer.cpp
...\MyTimer.h
...\input.txt
...\output.txt
...\半数集问题.cpp
...\半数集问题.dsp
...\半数集问题.dsw
...\半数集问题.ncb
...\半数集问题.opt
...\半数集问题.plg
2-5
...\2-5.cpp
...\2-5.dsp
...\2-5.dsw
...\2-5.ncb
...\2-5.opt
...\2-5.plg
...\MyTimer.cpp
...\MyTimer.h
...\input.txt
...\output.txt
2-9
...\2-9.cpp
...\2-9.dsp
...\2-9.dsw
...\2-9.ncb
...\2-9.opt
...\2-9.plg
...\MyTimer.cpp
...\MyTimer.h
...\input.txt
...\output.txt