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I understand the usage and purpose of Array#inject but why is it called inject? I don't understand what's being injected where.
I prefer to think of inject as "injecting" an operation among the items inside the given array and returning the final result of the calculation.
(1..5).inject(:+) #=> 15
In my example, it takes the number 1 to 5 and "injects" a sum operation among them, resulting in 1 + 2 + 3 + 4 + 5 = 15.
Also, it is aliased by reduce, as stated with details in https://ruby-doc.org/core-2.4.1/Enumerable.html#method-i-inject.
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I am trying to retrieve the last 10 mentions of the text that's in cell B8.
For example, if B8 is "Tom Brady", I want to retrieve the last 10 results for Passing Yards (DB:M) that mention Tom Brady.
I got this formula but it displays the first 15 it seems.
=QUERY(DB!B:AZ,"select M where C = '"&B8&"' order by B desc limit 15")
https://docs.google.com/spreadsheets/d/12b9dxeSt4_F9hdgaqDzggNW-fbMyXesWaqT0JjqMVhk/edit?usp=sharing
Any help would be appreciated!
use:
=INDEX(SORT(SORTN(FILTER({D5:D, ROW(D5:D)}, D5:D<>""), 10, 0, 2, 0), 2, 1),,1)
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I want to display the only the highlighted values (They are 9 digits). Can we do this using RegExp?
You can use regexp_substr(column1, '[0-9]{9}'). Below is an example:
select regexp_substr(column1, '[0-9]{9}') nine_digits
from (values
(';**260488570**;1;13.25;20339=22.99')
,('1293=::info::0,;**297100755**;1;2.86;20339=4.49')
,('1293=::info::0,;**338010030**;3;6.71;20339=2.69')
,('1293=::info::0,;**260142941**;1;2.38;20339=4.59')
,('1293=::info::0,;**370039059**;1;2.86;20339=3.79')
);
Result:
COL2
260488570
297100755
338010030
260142941
370039059
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I wrote this code in my project but every time i run it the answer is diffrent.
]1
Initialize sum with a value of 0. The reason it is different every time is you are calling sum which you never assigned a value. Anything could be in memory where sum is stored, which is why your results are inconsistent.
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An array of integer is given of size n. We have to make all the equal. For this we can add 1, 2 or 5 to the array element any time and to any element. We have to find minimum no of operation to do so?
For example
Array. 2 2 3 7
Output should be 2
Explanation
In first operation we add 1 to 2,2,7
After that array will be as 3 3 3 8
Now in 2nd operation we add 5 to 3,3,3
After that array will be as 8,8,8,8
You could first think about how many operations it would cost to get all values to the highest value in the list.
In a second step you can think if there could be a better solution if you try to reach highest-value+1, highest-value+2, highest-value+3, highest-value+4 .
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I want to print out each integer of an int individually using a for loop. I am doing this because I want to print things in between some of the single ints. So if the number was 4564, I want to print out 4 5 6 4. Is there a quick way to do this?
I know how to do it in java but I am new to C and am not sure.
Something like this shall help
while(num!=0) {
printf("%d", num%10); //your last digit, you can store it in an array of characters as well
num = num/10 ;
}
Note : you've got to reverse the order while using the digits