(This is a very good code in C language, which is very universal and suitable for beginners.
cpp\CH0408.CPP
cpp\CH0505.CPP
cpp\CH0510.CPP
cpp\CH0510.DSP
cpp\CH0510.DSW
cpp\CH0510.ncb
cpp\CH0510.OPT
cpp\CH0510.PLG
cpp\CH0603.CPP
cpp\CH0607.CPP
cpp\CH0611.CPP
cpp\CH0613.CPP
cpp\CH0615.CPP
cpp\CH0701.CPP
cpp\CH0707.CPP
cpp\CH0709.CPP
cpp\CH0714.CPP
cpp\CH0814.CPP
cpp\CH0817.CPP
cpp\CH1005.CPP
cpp\CH1007.CPP
cpp\CH1011.CPP
cpp\CH1011.DSP
cpp\CH1011.DSW
cpp\CH1011.ncb
cpp\CH1011.OPT
cpp\CH1011.PLG
cpp\CH1016.CPP
cpp\CH1112.CPP
cpp\CH1205.CPP)