1. Practice fig06_18.c, fig06_19.c, fig06_21.c, and fig06_22.c with a C compiler (onlinegdb, or
Codeblocks, or others).
2. Write a program that create a 5-by-6 array. All elements in the array are random integer
numbers between 1 and 100. Then, calculate the mean values of each column, and also find
the minimums and maximums of each column. Print out the array, mean values, minimums,
and maximums of columns.