Help with Array program

Sporg · **Posted:** Wed May 25, 2005 7:51 am

Hello, I recently was assigned an array program for my class. I am not a very good turing programmer. In my program im suppose to find the highest and lowest numbers in a predefined array. I think there is something wroung with my functions and with my array. Hopefully someone here will be able to help me.

code:

function smallest (list : array 1 .. 5 of int) : int
var smalln : int
for i : 1 .. upper(list)
if (i) < smalln then
smalln := i
end if
end for
result smalln
end smallest

function largest (list : array 1 .. 5 of int) : int
var largen : int
for i: 1 .. upper(list)
if (i) > largen then
largen := list(i)
end if
end for
result largen
end largest

var numbers : array 1 .. 5 of int :=init(62, 38, 75, 92, 83)

put "The smallest number is :", smallest (numbers)
put "The largest number is :", largest (numbers)

jamonathin · **Posted:** Wed May 25, 2005 8:01 am

When you first run it, an error pops up saying one of the variables has no value. That would be the variable smalln. You're going to want to make it equal to one of the numbers in list, and do the same thing for largen.

Now you're checking if (i) is greater, don't you mean list (i)?.

Also, in your function, make list : array 1 .. * of int, because we never know exactly how many are going in.

So this is what your program should look like.

Turing:

function smallest (list : array 1 .. * of int) : int
var smalln : int := list (1)
for i : 1 .. upper (list)
if list (i) < smalln then
smalln := list (i)
end if
end for
result smalln
end smallest

function largest (list : array 1 .. * of int) : int
var largen : int := list (1)
for i : 1 .. upper (list)
if list (i) > largen then
largen := list (i)
end if
end for
result largen
end largest

var numbers : array 1 .. 5 of int := init (62, 38, 75, 92, 83)

put "The smallest number is :", smallest (numbers)
put "The largest number is :", largest (numbers)

Sporg · **Posted:** Wed May 25, 2005 8:11 am

works great, and from this code im able to figure out my other programs im assigned, so far anyway. Thanks

MysticVegeta · **Posted:** Wed May 25, 2005 3:17 pm

code:

var temp : int
var numbers : array 1 .. 6 of int
for a : 1 .. 6
get numbers (a)
end for
put ""

for i : 1 .. 6
for j : i .. 6
if (numbers (i) > numbers (j)) then
temp := numbers (i)
numbers (i) := numbers (j)
numbers (j) := temp
end if
end for
put numbers (i)
end for

Shorter method i guess

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