sum Questions
9
Solved
Let's say I have this:
function arrSum(){
*code here*
}
How do I write the arrSum function such that it can sum all the integers within a multidimensional array (of variable depth).
I.e.
arrS...
Fils asked 12/11, 2015 at 5:52
7
Solved
3
Solved
My data file has this content
# data file for use with gnuplot
# Report 001
# Data as of Tuesday 03-Sep-2013
total 1976
case1 522 278 146 65 26 7
case2 120 105 15 0 0 0
case3 660 288 202 106 63 1...
3
Solved
For example: 1,2,4,5 has the following sum:
1,2,4,5
3,6,9
7,11
12
and every sum is unique.
Now, 1,2,3 has the following sum:
1,2,3
3,5
6
and apparently not every sum is unique.
Is there ...
11
Solved
There's an array A containing (positive and negative) integers. Find a (contiguous) subarray whose elements' absolute sum is minimal, e.g.:
A = [2, -4, 6, -3, 9]
|(−4) + 6 + (−3)| = 1 <- minima...
Wexler asked 22/9, 2014 at 2:31
25
Solved
#!/usr/bin/python2
"""
Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be:
1, 2, 3, 5, 8, 13, 21, 34, 55, 8...
4
Solved
I'm trying to find similar or equivalent function of Matlabs "Bwareaopen" function in OpenCV?
In MatLab Bwareaopen(image,P) removes from a binary image all connected components (objects) that have...
8
i'm trying to find a combination for a sum inside a list of integers.
the amount of numbers that contain the sum is limited by a variable, so for example in the list -
[5,2,3,9,1], i would like t...
Autosome asked 25/10, 2013 at 20:54
4
I have 3 vectors:
x <- c(3, 5, 2)
y <- c(3, 2, 1, 1, 2, 3, 4, 5, 4, 5)
z <- c(2, 4, 8, 1, 5)
x is the number of elements in each group.
y gives indices to extract elements from z. The fir...
7
Solved
The title might be a bit confusing so allow me to explain. I'm using a table to record my work logs. Every day I'll create an entry stating from what time to what time I have worked and I'll add a ...
5
Solved
I'm trying to sum the elements along the antidiagonal (secondary diagonal, minor diagonal) of a matrix.
So, if I have a matrix m:
m <- matrix(c(2, 3, 1, 4, 2, 5, 1, 3, 7), 3)
m
[,1] [,2] [,3...
3
Solved
I'm trying to sum some values in an array of documents, with no luck.
This is the Document
db.Cuentas.find().pretty()
{
"Agno": "2013",
"Egresos": [
{
"Fecha": "28-01-2013",
"Monto": 150000...
Gowen asked 28/1, 2013 at 20:25
5
Solved
To demonstrate I have done sth.
This is my code do sum in three lines.
l=[1,2,3,4,5];
sumOfList=0
for i in l:
sumOfList+=i*i;
print sumOfList
I am curious can I do it in just one line?
8
Solved
I have the following DataFrame:
In [1]:
df = pd.DataFrame({'a': [1, 2, 3],
'b': [2, 3, 4],
'c': ['dd', 'ee', 'ff'],
'd': [5, 9, 1]})
df
Out [1]:
a b c d
0 1 2 dd 5
1 2 3 ee 9
2 3 4 ff 1
I wou...
5
Solved
I have a data frame with several columns; some numeric and some character. How to compute the sum of a specific column? I’ve googled for this and I see numerous functions (sum, cumsum, rowsum, rowS...
Overindulge asked 12/3, 2012 at 23:22
3
Solved
I'm trying to generate all possible lists of Length N that sum to S. I've written some code to do so, but on anything large (in particular, I want N=5, S=100), I run into memory overflow errors.
I...
5
Solved
It's a question from C++ Primer Chapter 16.2.3 (question 16.41):
Write a version of sum with a return type that is
guaranteed to be large enough to hold the result of the addition.
I'm sure t...
5
Solved
How do I sum over the columns of a tensor?
torch.Size([10, 100]) ---> torch.Size([10])
2
I have a Prometheus counter, for which I want to get its rate on a time range (the real target is to sum the rate, and sometimes use histogram_quantile on that for histogram metric).
However, I've ...
Longboat asked 8/10, 2018 at 7:39
2
I've managed to get a query working that sums up all the child rows of the parent class:
subq = db.session.query(Transaction.budget_id, func.sum(Transaction.amount).label("total"), func.count('*')...
Nightfall asked 20/2, 2016 at 14:39
6
Solved
I have a list as follows,
flat_list = ['hello,5', 'mellow,4', 'mellow,2', 'yellow,2', 'yellow,7', 'hello,7', 'mellow,7', 'hello,7']
I would like to get the sum of the values if they share the same...
Hifi asked 16/3, 2022 at 13:26
18
Solved
How can I add all the columnar values by associative key? Note that key sets are dynamic.
Input array:
Array
(
[0] => Array
(
[gozhi] => 2
[uzorong] => 1
[ngangla] => 4
[langth...
Antiperiodic asked 30/9, 2009 at 7:59
3
Solved
I like the Python sum function :
>>> z = [1] * 11
>>> zsum = sum(z)
>>> zsum == 11
True
I want the same functionality with using xor (^) not add (+). I want to use map...
4
I want to obtain the sum of several cells containing a period of time in the format HH:MM:SS.
In LibreOffice Calc 4.0.3.3, I've copy-pasted the periods of time in the range G14:G21, and formatted t...
Ithaman asked 22/5, 2013 at 20:42
8
Solved
Is there a more idiomatic way to sum string lengths in Python than by using a loop?
length = 0
for string in strings:
length += len(string)
I tried sum(), but it only works for integers:
>&...
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