File list (Check if you may need any files):
Ex4_6\Ex4_6.cpp
.....\Ex4_6.dsp
.....\Ex4_6.dsw
Ex4_6
....1_1\Ex4_1_1.cpp
.......\Ex4_1_1.dsp
.......\Ex4_1_1.dsw
Ex4_1_1
....2\Ex4_2.cpp
.....\Ex4_2.dsp
.....\Ex4_2.dsw
.....\rect.cpp
.....\rect.h
Ex4_2
....3\Ex4_3.cpp
.....\Ex4_3.dsp
.....\Ex4_3.dsw
Ex4_3
....4\Ex4_4.cpp
.....\Ex4_4.dsp
.....\Ex4_4.dsw
Ex4_4
....5\Ex4_5.cpp
.....\Ex4_5.dsp
.....\Ex4_5.dsw
Ex4_5
....1\Ex4_1.cpp
.....\Ex4_1.dsp
.....\Ex4_1.dsw
Ex4_1
....7\Ex4_7.cpp
.....\Ex4_7.dsp
.....\Ex4_7.dsw
Ex4_7
....8\Ex4_8.cpp
.....\Ex4_8.dsp
.....\Ex4_8.dsw
Ex4_8
....._1\Ex4_8_1.cpp
.......\Ex4_8_1.dsp
.......\Ex4_8_1.dsw
Ex4_8_1
......2\Ex4_8_2.cpp
.......\Ex4_8_2.dsp
.......\Ex4_8_2.dsw
Ex4_8_2
....9\Ex4_9.cpp
.....\Ex4_9.dsp
.....\Ex4_9.dsw
Ex4_9
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