initial commit

On branch master
Changes to be committed:

	new file:   arrays/main.c
	new file:   colors/main.c
	new file:   control-statements/main.c
	new file:   expressions/main.c
	new file:   file-input-with-math/data.txt
	new file:   file-input-with-math/data2.txt
	new file:   file-input-with-math/main.c
	new file:   for-loops-with-arrays/main.c
	new file:   for/main.c
	new file:   functions/main.c
	new file:   printf/main.c
	new file:   string-and-char-io/letter.txt
	new file:   string-and-char-io/main.c
	new file:   string-and-char-io/template.txt
	new file:   string-and-char-io/words.txt
	new file:   structs-and-binary-files/cityinfo.dat
	new file:   structs-and-binary-files/main.c
	new file:   time/main.c
	new file:   while/main.c