Sum of Array: Difference between revisions
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Compute the sum of the elements of an Array |
Compute the sum of the elements of an Array |
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Line 11: | Line 11: | ||
$var:=0 |
$var:=0 |
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For ($i;1;Size of array($list)) |
For ($i;1;Size of array($list)) |
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$var:=$var |
$var:=$var+$list{$i} |
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End for |
End for |
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Line 20: | Line 20: | ||
Sum : Integer := 0; |
Sum : Integer := 0; |
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for I in Int_Array'range loop |
for I in Int_Array'range loop |
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Sum := Sum |
Sum := Sum + Int_Array(I); |
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end loop; |
end loop; |
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Line 30: | Line 30: | ||
repeat with i in array |
repeat with i in array |
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-- very important -- list index starts at 1 not 0 |
-- very important -- list index starts at 1 not 0 |
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set product to product |
set product to product + i |
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end repeat |
end repeat |
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Line 42: | Line 42: | ||
50 REM Find the sum of elements in the array |
50 REM Find the sum of elements in the array |
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60 SUM = 0 |
60 SUM = 0 |
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70 FOR I = 1 TO 5: SUM = SUM |
70 FOR I = 1 TO 5: SUM = SUM + ARRAY(I): NEXT I |
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80 PRINT "The sum is ";SUM |
80 PRINT "The sum is ";SUM |
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==[[C plus plus|C |
==[[C plus plus|C++]]== |
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[[Category:C plus plus]] |
[[Category:C plus plus]] |
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Line 55: | Line 55: | ||
int list[] = { 1, 2, 3 } ; |
int list[] = { 1, 2, 3 } ; |
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int sum = 0 ; |
int sum = 0 ; |
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for( int i = 0 ; i < 3 ; i |
for( int i = 0 ; i < 3 ; i++ ) |
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{ |
{ |
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sum |
sum += list[i]; |
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} |
} |
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} |
} |
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Line 69: | Line 69: | ||
{ |
{ |
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int list[] = { 1, 2, 3 } ; |
int list[] = { 1, 2, 3 } ; |
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std::accumulate(list, list |
std::accumulate(list, list + 3, 0); |
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return 0; |
return 0; |
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} |
} |
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Line 78: | Line 78: | ||
{ |
{ |
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T accum = 0; |
T accum = 0; |
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for (unsigned i=0; i<n; i |
for (unsigned i=0; i<n; i++) |
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accum |
accum += array[i]; |
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return accum; |
return accum; |
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} |
} |
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Line 103: | Line 103: | ||
int arg_length = arg.Length; |
int arg_length = arg.Length; |
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for( int i = 0; i < arg_length; i |
for( int i = 0; i < arg_length; i++ ) |
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value |
value += arg[i]; |
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Line 111: | Line 111: | ||
int sum = 0; |
int sum = 0; |
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int[] arg = { 1, 2, 3, 4, 5 }; |
int[] arg = { 1, 2, 3, 4, 5 }; |
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foreach (int value in arg) sum |
foreach (int value in arg) sum += value; |
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==[[Clean]]== |
==[[Clean]]== |
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Line 128: | Line 128: | ||
(defparameter *data* #(1 2 3 4 5)) |
(defparameter *data* #(1 2 3 4 5)) |
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(reduce #' |
(reduce #'+ *data*) |
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==[[Delphi]]== |
==[[Delphi]]== |
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Line 146: | Line 146: | ||
pragma.enable("accumulator") |
pragma.enable("accumulator") |
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accum 0 for x in [1,2,3,4,5] { _ |
accum 0 for x in [1,2,3,4,5] { _ + x } |
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==[[Erlang]]== |
==[[Erlang]]== |
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Line 168: | Line 168: | ||
0; |
0; |
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sum_rec([Head|Tail]) -> |
sum_rec([Head|Tail]) -> |
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Head |
Head + sum_rec(Tail). |
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% tail-recursive definition: |
% tail-recursive definition: |
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Line 176: | Line 176: | ||
Acc; |
Acc; |
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sum_tail([Head|Tail], Acc) -> |
sum_tail([Head|Tail], Acc) -> |
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sum_tail(Tail, Head |
sum_tail(Tail, Head + Acc). |
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==[[Forth]]== |
==[[Forth]]== |
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Line 183: | Line 183: | ||
: sum ( addr cnt -- n ) |
: sum ( addr cnt -- n ) |
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0 -rot |
0 -rot |
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cells bounds do i @ |
cells bounds do i @ + cell +loop ; |
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Line 193: | Line 193: | ||
dim sum as integer = 0 |
dim sum as integer = 0 |
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for index as integer = lbound(array) to ubound(array) |
for index as integer = lbound(array) to ubound(array) |
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sum |
sum += array(index) |
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next |
next |
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Line 201: | Line 201: | ||
let values = [1..10] |
let values = [1..10] |
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sum values -- the easy way |
sum values -- the easy way |
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foldl ( |
foldl (+) 0 values -- the hard way |
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==[[IDL]]== |
==[[IDL]]== |
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Line 214: | Line 214: | ||
int[] arg = new int[] { 1,2,3,4,5 }; |
int[] arg = new int[] { 1,2,3,4,5 }; |
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for (int i: arg) |
for (int i: arg) |
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value |
value += i; |
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==[[JavaScript]]== |
==[[JavaScript]]== |
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Line 222: | Line 222: | ||
var sum = 0; |
var sum = 0; |
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for(var i in array) |
for(var i in array) |
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sum |
sum += array[i]; |
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==[[Perl]]== |
==[[Perl]]== |
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Line 230: | Line 230: | ||
my $var; |
my $var; |
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my @list = (1, 2, 3); |
my @list = (1, 2, 3); |
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$var |
$var += $_ for (@list); |
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Alternate |
Alternate |
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Line 245: | Line 245: | ||
my $acc = 0; |
my $acc = 0; |
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my @list = qw(1 2 3) |
my @list = qw(1 2 3) |
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map { $acc |
map { $acc += $_ } @list |
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==[[PHP]]== |
==[[PHP]]== |
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Line 260: | Line 260: | ||
lvars i, sum = 0, ar = {1 2 3 4 5 6 7 8 9}; |
lvars i, sum = 0, ar = {1 2 3 4 5 6 7 8 9}; |
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for i from 1 to length(ar) do |
for i from 1 to length(ar) do |
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ar(i) |
ar(i) + sum -> sum; |
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endfor; |
endfor; |
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Line 266: | Line 266: | ||
lvars sum = 0, ar = {1 2 3 4 5 6 7 8 9}; |
lvars sum = 0, ar = {1 2 3 4 5 6 7 8 9}; |
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appdata(ar, procedure(x); x |
appdata(ar, procedure(x); x + sum -> sum; endprocedure); |
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==[[Prolog]]== |
==[[Prolog]]== |
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[[Category:Prolog]] |
[[Category:Prolog]] |
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sum([],0). |
sum([],0). |
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sum([H|T],X) :- sum(T,Y), X is H |
sum([H|T],X) :- sum(T,Y), X is H + Y. |
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test |
test |
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:- sum([1,2,3,4,5,6,7,8,9],X). |
:- sum([1,2,3,4,5,6,7,8,9],X). |
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Line 286: | Line 286: | ||
ary = [1,2,3,4,5] |
ary = [1,2,3,4,5] |
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sum = ary.inject{|currentSum,element|currentSum |
sum = ary.inject{|currentSum,element|currentSum+element} |
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# => 15 |
# => 15 |
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Line 292: | Line 292: | ||
[[Category:Scala]] |
[[Category:Scala]] |
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val array = Array(1,2,3,4,5) |
val array = Array(1,2,3,4,5) |
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val sum = array.foldLeft(0)(_ |
val sum = array.foldLeft(0)(_ + _) |
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This is a shortcut for |
This is a shortcut for |
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val sum = array.foldLeft(0){(currentSum, element) => currentSum |
val sum = array.foldLeft(0){(currentSum, element) => currentSum + element} |
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==[[Seed7]]== |
==[[Seed7]]== |
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Line 307: | Line 307: | ||
begin |
begin |
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for value range valueArray do |
for value range valueArray do |
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sum |
sum +:= value; |
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end for; |
end for; |
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end func; |
end func; |
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Line 319: | Line 319: | ||
val array = [1,2,3,4,5]; |
val array = [1,2,3,4,5]; |
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foldl op |
foldl op+ 0 array; |
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==[[Tcl]]== |
==[[Tcl]]== |
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Line 326: | Line 326: | ||
Assuming the values are in a list named <tt>listname</tt>: |
Assuming the values are in a list named <tt>listname</tt>: |
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set result [expr [join $listname |
set result [expr [join $listname +]] |
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==[[Toka]]== |
==[[Toka]]== |
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Line 332: | Line 332: | ||
[ ( array size -- sum ) |
[ ( array size -- sum ) |
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>r 0 r> [ over i swap get-element |
>r 0 r> [ over i swap get-element + ] iterate nip ] is sum-array |
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==[[UNIX Shell]]== |
==[[UNIX Shell]]== |
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Line 344: | Line 344: | ||
list="1 2 3" |
list="1 2 3" |
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for n in $list |
for n in $list |
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do sum="$(($sum |
do sum="$(($sum + $n))" |
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done |
done |
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echo $sum |
echo $sum |
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Line 352: | Line 352: | ||
sum=0 |
sum=0 |
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for n |
for n |
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do sum="$(($sum |
do sum="$(($sum + $n))" |
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done |
done |
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echo $sum |
echo $sum |
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Line 360: | Line 360: | ||
sum=0 |
sum=0 |
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while read n |
while read n |
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do sum="$(($sum |
do sum="$(($sum + $n))" |
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done |
done |
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echo $sum |
echo $sum |
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Line 371: | Line 371: | ||
SUM=0; |
SUM=0; |
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for i in $LIST; do |
for i in $LIST; do |
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SUM=$[$SUM |
SUM=$[$SUM + $i]; |
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done; |
done; |
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echo $SUM |
echo $SUM |
Revision as of 00:01, 1 July 2007
![Task](http://static.miraheze.org/rosettacodewiki/thumb/b/ba/Rcode-button-task-crushed.png/64px-Rcode-button-task-crushed.png)
You are encouraged to solve this task according to the task description, using any language you may know.
Compute the sum of the elements of an Array
4D
ARRAY INTEGER($list;0) For ($i;1;5) APPEND TO ARRAY($list;$i) End for $var:=0 For ($i;1;Size of array($list)) $var:=$var+$list{$i} End for
Ada
Int_Array : array(1..10) of Integer := (1,2,3,4,5,6,7,8,9,10); Sum : Integer := 0; for I in Int_Array'range loop Sum := Sum + Int_Array(I); end loop;
AppleScript
set array to {1, 2, 3, 4, 5} set product to 0 repeat with i in array -- very important -- list index starts at 1 not 0 set product to product + i end repeat
BASIC
10 REM Create an array with some test data in it 20 DIM ARRAY(5) 30 FOR I = 1 TO 5: READ ARRAY(I): NEXT I 40 DATA 1, 2, 3, 4, 5 50 REM Find the sum of elements in the array 60 SUM = 0 70 FOR I = 1 TO 5: SUM = SUM + ARRAY(I): NEXT I 80 PRINT "The sum is ";SUM
C++
Compiler: gcc 4.0.2
int main( int argc, char* argv[] ) { int list[] = { 1, 2, 3 } ; int sum = 0 ; for( int i = 0 ; i < 3 ; i++ ) { sum += list[i]; } }
Alternate
#include <numeric> int main( int argc, char* argv[] ) { int list[] = { 1, 2, 3 } ; std::accumulate(list, list + 3, 0); return 0; }
template alternative
template <typename T> T sum (const T *array, const unsigned n) { T accum = 0; for (unsigned i=0; i<n; i++) accum += array[i]; return accum; }
#include <iostream> using std::cout; using std::endl;
int main (void) { int aint[] = {1, 2, 3}; cout << sum(aint,3) << endl; float aflo[] = {1.1, 2.02, 3.003, 4.0004}; cout << sum(aflo,4) << endl; return 0; }
C#
int value = 0; int[] arg = { 1,2,3,4,5 }; int arg_length = arg.Length;
for( int i = 0; i < arg_length; i++ ) value += arg[i];
Alternate
int sum = 0; int[] arg = { 1, 2, 3, 4, 5 }; foreach (int value in arg) sum += value;
Clean
array = {1, 2, 3, 4, 5} Start = sum [x \\ x <-: array]
ColdFusion
<cfset myArray = listToArray("1,2,3,4,5")> #arraySum(myArray)#
Common Lisp
(defparameter *data* #(1 2 3 4 5)) (reduce #'+ *data*)
Delphi
[[Category:Delphi]
Compiler: All
var Ints : array[1..5] of integer = (1,2,3,4,5) ; i,Sum : integer = 0 ; begin for i := 1 to length(ints) do inc(sum,ints[i]) ; end;
E
pragma.enable("accumulator") accum 0 for x in [1,2,3,4,5] { _ + x }
Erlang
Using the standard libraries:
% create the list: L = lists:seq(1, 10).
% and compute its sum: S = lists:sum(L).
Or defining our own versions:
-module(list_sum). -export([sum_rec/1, sum_tail/1]).
% recursive definition: sum_rec([]) -> 0; sum_rec([Head|Tail]) -> Head + sum_rec(Tail).
% tail-recursive definition: sum_tail(L) -> sum_tail(L, 0). sum_tail([], Acc) -> Acc; sum_tail([Head|Tail], Acc) -> sum_tail(Tail, Head + Acc).
Forth
: sum ( addr cnt -- n ) 0 -rot cells bounds do i @ + cell +loop ;
FreeBASIC
dim array(4) as integer = { 1, 2, 3, 4, 5 }
dim sum as integer = 0 for index as integer = lbound(array) to ubound(array) sum += array(index) next
Haskell
let values = [1..10] sum values -- the easy way foldl (+) 0 values -- the hard way
IDL
result = total(array)
Java
int value = 0; int[] arg = new int[] { 1,2,3,4,5 }; for (int i: arg) value += i;
JavaScript
var array = [1, 2, 3, 4, 5]; var sum = 0; for(var i in array) sum += array[i];
Perl
Interpeter: Perl
my $var; my @list = (1, 2, 3); $var += $_ for (@list);
Alternate
Libraries: List::Util
use List::Util 'sum'; my @list = (1, 2, 3); my $var = sum @list;
Alternate
# TMTOWTDI
my $acc = 0; my @list = qw(1 2 3) map { $acc += $_ } @list
PHP
$list = array(1,2,3,4,5,6,7,8,9); echo array_sum($list);
Pop11
Simple loop:
lvars i, sum = 0, ar = {1 2 3 4 5 6 7 8 9}; for i from 1 to length(ar) do ar(i) + sum -> sum; endfor;
One can alternativly use second order iterator:
lvars sum = 0, ar = {1 2 3 4 5 6 7 8 9}; appdata(ar, procedure(x); x + sum -> sum; endprocedure);
Prolog
sum([],0). sum([H|T],X) :- sum(T,Y), X is H + Y.
test
:- sum([1,2,3,4,5,6,7,8,9],X). X =45;
Python
Interpeter: Python 2.5
total = sum([1, 2, 3, 4, 5, 6, 7, 8, 9])
Ruby
ary = [1,2,3,4,5] sum = ary.inject{|currentSum,element|currentSum+element} # => 15
Scala
val array = Array(1,2,3,4,5) val sum = array.foldLeft(0)(_ + _)
This is a shortcut for
val sum = array.foldLeft(0){(currentSum, element) => currentSum + element}
Seed7
const func integer: sumArray (in array integer: valueArray) is func result var integer: sum is 0; local var integer: value is 0; begin for value range valueArray do sum +:= value; end for; end func;
Call this function with:
writeln(sumArray([](1, 2, 3, 4, 5)));
Standard ML
val array = [1,2,3,4,5]; foldl op+ 0 array;
Tcl
Assuming the values are in a list named listname:
set result [expr [join $listname +]]
Toka
[ ( array size -- sum ) >r 0 r> [ over i swap get-element + ] iterate nip ] is sum-array
UNIX Shell
Interpreter: NetBSD 3.0's ash
From an internal variable, $IFS delimited:
sum=0 list="1 2 3" for n in $list do sum="$(($sum + $n))" done echo $sum
From the argument list (ARGV):
sum=0 for n do sum="$(($sum + $n))" done echo $sum
From STDIN, one integer per line:
sum=0 while read n do sum="$(($sum + $n))" done echo $sum
Interpreter: GNU bash, version 3.2.0(1)-release (i386-unknown-freebsd6.1)
From variable:
LIST='20 20 2'; SUM=0; for i in $LIST; do SUM=$[$SUM + $i]; done; echo $SUM