garypyne
asked on
Bubble sort
Hey
i am trying to use a bubble sort, to try and sort numbers from 1 to 20 in order. so that array 1 is 1 and array 2 is 2 etc.
here is my code im using.
************************** ********** ********** ********** ********** **
Program arraytas(input,output);
uses crt,dos;
var
numbers : array [1..20] of integer;
choice : integer;
exitvar : integer;
count : integer;
small : integer;
num : integer;
(************************* ** Smallest ************************** ********** *)
procedure smallest;
begin
numbers[1] := 4;
numbers[2] := 14;
numbers[3] := 13;
numbers[4] := 1;
numbers[5] := 7;
numbers[6] := 18;
numbers[7] := 20;
numbers[8] := 3;
numbers[9] := 8;
numbers[10] := 2;
numbers[11] := 12;
numbers[12] := 17;
numbers[13] := 19;
numbers[14] := 6;
numbers[15] := 9;
numbers[16] := 10;
numbers[17] := 11;
numbers[18] := 15;
numbers[19] := 5;
numbers[20] := 16;
small := numbers[1];
for count := 1 to 20 do
begin
if numbers[count] < small then
begin
small := numbers[count];
num := count
end;
end;
writeln( 'the smallest number is ', small, ' and is in position ', num);
end;
(************************* Largest ************************** ********** ****)
procedure largest;
begin
numbers[1] := 4;
numbers[2] := 14;
numbers[3] := 13;
numbers[4] := 1;
numbers[5] := 7;
numbers[6] := 18;
numbers[7] := 20;
numbers[8] := 3;
numbers[9] := 8;
numbers[10] := 2;
numbers[11] := 12;
numbers[12] := 17;
numbers[13] := 19;
numbers[14] := 6;
numbers[15] := 9;
numbers[16] := 10;
numbers[17] := 11;
numbers[18] := 15;
numbers[19] := 5;
numbers[20] := 16;
small := numbers[1];
for count := 1 to 20 do
begin
if numbers[count] > small then
begin
small := numbers[count];
num := count
end;
end;
writeln( 'the Largest number is ', small, ' and is in position ', num);
end;
(************************* ****** Main ************************** *********)
begin
clrscr;
repeat
writeln('Please select your required tool');
writeln('1. Find teh smallest number');
writeln('2. Find the Largest Number');
writeln('3. Quit');
readln(choice);
if choice = 1 then
smallest;
if choice = 2 then
largest;
if choice = 3 then
exitvar := 3
until exitvar = 3
end.
************************** ********** ********** ********** **********
could anyone help me add the bulled sort part pls.
any help would be appreciated
ty
gary
i am trying to use a bubble sort, to try and sort numbers from 1 to 20 in order. so that array 1 is 1 and array 2 is 2 etc.
here is my code im using.
**************************
Program arraytas(input,output);
uses crt,dos;
var
numbers : array [1..20] of integer;
choice : integer;
exitvar : integer;
count : integer;
small : integer;
num : integer;
(*************************
procedure smallest;
begin
numbers[1] := 4;
numbers[2] := 14;
numbers[3] := 13;
numbers[4] := 1;
numbers[5] := 7;
numbers[6] := 18;
numbers[7] := 20;
numbers[8] := 3;
numbers[9] := 8;
numbers[10] := 2;
numbers[11] := 12;
numbers[12] := 17;
numbers[13] := 19;
numbers[14] := 6;
numbers[15] := 9;
numbers[16] := 10;
numbers[17] := 11;
numbers[18] := 15;
numbers[19] := 5;
numbers[20] := 16;
small := numbers[1];
for count := 1 to 20 do
begin
if numbers[count] < small then
begin
small := numbers[count];
num := count
end;
end;
writeln( 'the smallest number is ', small, ' and is in position ', num);
end;
(*************************
procedure largest;
begin
numbers[1] := 4;
numbers[2] := 14;
numbers[3] := 13;
numbers[4] := 1;
numbers[5] := 7;
numbers[6] := 18;
numbers[7] := 20;
numbers[8] := 3;
numbers[9] := 8;
numbers[10] := 2;
numbers[11] := 12;
numbers[12] := 17;
numbers[13] := 19;
numbers[14] := 6;
numbers[15] := 9;
numbers[16] := 10;
numbers[17] := 11;
numbers[18] := 15;
numbers[19] := 5;
numbers[20] := 16;
small := numbers[1];
for count := 1 to 20 do
begin
if numbers[count] > small then
begin
small := numbers[count];
num := count
end;
end;
writeln( 'the Largest number is ', small, ' and is in position ', num);
end;
(*************************
begin
clrscr;
repeat
writeln('Please select your required tool');
writeln('1. Find teh smallest number');
writeln('2. Find the Largest Number');
writeln('3. Quit');
readln(choice);
if choice = 1 then
smallest;
if choice = 2 then
largest;
if choice = 3 then
exitvar := 3
until exitvar = 3
end.
**************************
could anyone help me add the bulled sort part pls.
any help would be appreciated
ty
gary
ASKER CERTIFIED SOLUTION
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Good. Your program looks like one that I assign sometimes so I thought rather than give the answer I would explain the algorithm.
For the future. We can help you with your programs but will not do them for you. For instance if you had the bubble sort but it wasn't quite working we could help fix the problem.
Glad i could help
mlmcc
For the future. We can help you with your programs but will not do them for you. For instance if you had the bubble sort but it wasn't quite working we could help fix the problem.
Glad i could help
mlmcc
a tip
(psuedocode)
TempHolder: Integer;
if numA < numB
TempHolder = numA
numA = numB
numB = TempHolder
because if you do something like:
numA = numB
numB = numA
think about it... if numA is 4 and numB is 9 then it's like saying
numA = 9
numB = 9
since numA was already assigned before the numB assignment, therefore you need a temp variable to store one of the values
(psuedocode)
TempHolder: Integer;
if numA < numB
TempHolder = numA
numA = numB
numB = TempHolder
because if you do something like:
numA = numB
numB = numA
think about it... if numA is 4 and numB is 9 then it's like saying
numA = 9
numB = 9
since numA was already assigned before the numB assignment, therefore you need a temp variable to store one of the values
ASKER