Top "Loops" questions

Loops are a type of control flow structure in programming in which a series of statements may be executed repeatedly until some condition is met.

How to avoid "RuntimeError: dictionary changed size during iteration" error?

I have checked all of the other questions with the same error yet found no helpful solution =/ I have a …

python list dictionary loops
Correct way of looping through C++ arrays

Recently I have found a lot of examples, most of them regards the C++ 98, anyways I have created my simple-array …

c++ arrays loops c++11
Iterating Over Dictionary Key Values Corresponding to List in Python

Working in Python 2.7. I have a dictionary with team names as the keys and the amount of runs scored and …

python list function dictionary loops
foreach vs someList.ForEach(){}

There are apparently many ways to iterate over a collection. Curious if there are any differences, or why you'd use …

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How to add an integer to each element in a list?

If I have list=[1,2,3] and I want to add 1 to each element to get the output [2,3,4], how would I do …

python loops addition
Twig for loop for arrays with keys

I use Twig and I have an array with keys like this: array[1] = "alpha" array[2] = "bravo" array[3] = "charlie" array[8] = "delta" …

php arrays loops twig
Why is printing "B" dramatically slower than printing "#"?

I generated two matrices of 1000 x 1000: First Matrix: O and #. Second Matrix: O and B. Using the following code, the …

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"for" vs "each" in Ruby

I just had a quick question regarding loops in Ruby. Is there a difference between these two ways of iterating …

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Single Line Nested For Loops

Wrote this function in python that transposes a matrix: def transpose(m): height = len(m) width = len(m[0]) return [ [ m[…

python loops for-loop nested nested-loops
Why does using from __future__ import print_function breaks Python2-style print?

I am new at programming with python, and I am trying to print out with a separator and end but …

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