You need to #include <stdio.h> to fix the problem with printf() and scanf(). You have #include <stdlib.h> twice. Also, you should change: void testCount (); to: void testCount (int x); as suggested by @ Keine Lust. And please don’t forget to pass a value to your newly minted testCount() function! 3 solved Simple counting program … Read more
Yes, a generator can’t be equal to a string. When your call your function: get_objects(“anything”), it returns a generator object you can iterate over to get the values. If you want to check if the ith element returned is equal to something, do: for i, elem in enumerate(get_objects(“bla bla”)): if i == 3: return self.assertEqual(elem, … Read more
Read a specific item in index i: item = L[index] Read a sequence of items from index ‘start’ to index ‘stop’: seq = L[start:stop] Iterate over a list: for item in L: print item If you need both the index and the item, use the enumerate function: for index, item in enumerate(L): print index, item … Read more
A correct program can look for example the following way #include <iostream> int main() { int num, a = 15; num = ( —-a )–; std::cout << num << std::endl; std::cout << a << std::endl; return 0; } Its output is 13 12 The post-decrement operator has a higher priority than the pre-decrement operator and … Read more
You can use regular expression to get the result preg_match_all(‘/(.)\1*/’, $str, $m, PREG_SET_ORDER); $m = array_map(function($i) { return $i[1] . strlen($i[0]); } , $m); echo implode(”, $m); // a4b2a4b1a1b3c12 demo 4 solved String compression in php
This should work: var result = new Regex(“[^a-zA-Z0-9 ]”).Replace(address, string.Empty); This keeps only whatever in a-Z, A-Z or 0-9 or white space You can also use linq: var result2 = new String(address.Where(x => char.IsLetterOrDigit(x) || char.IsWhiteSpace(x)).ToArray()); 4 solved Remove all symbols different from numbers and letters in string [duplicate]
You should be able to cast DBObject to one of it’s implementation (see all implementations here : https://api.mongodb.com/java/3.0/com/mongodb/DBObject.html), in this case BasicDBList, which extends ArrayList , so you can use all methods from arrayList there. Mongo mongo = new Mongo(“localhost”, 27017); DB db = mongo.getDB(“test”);// Use DB DBObject allQuery = new BasicDBObject(); DBCollection collection = … Read more
Ok, I have the solution. I can find the rank through this command: [A_sorted, rank] = sort(A, ‘descend’); for k=1:10 rank = find(A_sorted == A(k)); end solved Find ranking in matrix in descending order [duplicate]
Yep, that’s pretty ugly code. 🙂 First, you only need to include $(document).ready(function(){ … }); once. Put everything inside it, where I put the …. Second, the neat thing about jQuery is that you can really easily “get” lots of elements at once as long as they share something unique to them — like they … Read more
Try like this, – (IBAction)buttonAction:(UIButton *)btn { yourNextVCobject.buttonTitle = [NSString stringWithFormat:@”%@”,btn.titleLabel.text]; // then push to ur vc. } In your Next VC, In .h @property (nonatomic, retain) NSString *buttonTitle; In .m [yourAnotherBtn setTitle:self.buttonTitle forState:UIControlStateNormal]; 6 solved Change button title [closed]
It’s hard to say for certain without knowing all the possible options of input strings, but for example if you always just want to get the number that has :: on its left AND :: on its right (1 in your example): var myInput=”LUGG::1::LUGG::5-GBP”; var myNumber = myInput.match(/::(\d+)::/)[1]; alert(myNumber); // alerts 1 solved Regular expression … Read more
Just a note, the first commenter is correct, you probably could have found this through a bit of Googling, but here’s the answer as best as I can explain it: Let’s take that code: Random random = new Random(); The first random just says what type of data the variable is going to store – … Read more
Try something like this: foreach (DictionaryEntry i in hashtable) { if (i.Value is Ülke) { Ülke x = (Ülke)i.Value; Console.WriteLine(” ” + x.Ülke + ” ” + x.nüfus); } } 1 solved Convert object to integer in hashtable [closed]
In C#, use Substring() with IndexOf: string val = val.Substring(val.IndexOf(‘]’) + 1); If you have multiple ] symbols, and you want to get all the string after the last one, use LastIndexOf: string val = “[01/02/70]\nhello [01/02/80] world “; string val = val.Substring(val.LastIndexOf(‘]’) + 1); // => ” world ” If you are a fan … Read more
select id, column_1, column_2, case when id in (12,22,456,56) then 1 else 0 end as zzz from tablename The IN clause in the case statement can be replaced with a table name having those id’s like: select id, column_1, column_2, case when id in (select distinct id from table2) then 1 else 0 end as … Read more