If that is the exact solution that you want. Following code snippet may help you. const arr = [ { type: ‘type’, fields: [‘field1’]}, { type: ‘type2’}, { type: ‘type’, fields: [‘field2’]} ] const modifyArr = (data) => { let res = []; arr.map((item) => { if(item.type == data.type){ if(Object.keys(item).includes(‘fields’)){ res = res.concat(item.fields); } } … Read more
If you have an array declared like int a[N]; where N is some positive integer value then the valid range of indices to access elements of the array is [0, N). It means that for example this for loop for(i=1;i<=10;i++) { printf(“enter 10 nos. for arr[%d] :”,i); scanf(“%d”,&arr[i]); } must look like for ( i … Read more
Strangely worded but still a valid question (in my opinion), so I really don’t get the downvotes. Anyway, here’s one possible solution: function foo($content, $keys) { return sizeof($keys) === 0 ? $content : foo([array_pop($keys) => $content], $keys); } print_r(foo(‘bar’, [‘a’, ‘b’, ‘c’, ‘d’, ‘e’])); demo: http://3v4l.org/2tcJ5 1 solved php make multidimensional array with values to … Read more
You need to check for the validity of your array bounds and value of b. b should obviously be: (Pseudo code): MinBound <= b <= MaxBound In your case , you can do as below: void traps() { int a,b,r; cout<<“Deciding placement of traps”; for (a = 1; a <= 8; a++) { r = … Read more
IMO, best will be to use a Dictionary<string,int[][]>. During creation you will place a new array (which you just created) and assosiate it to the key “a” + i. To get this array, just get the value attached to the relevant key. Something like (C#-like pseudo code): var map = new Dictionary<string,int[][]>(); for(int i=1;i<10;i++) { … Read more
This should fix your problem. It will parse all rows and place each line in a string stream. It then parses the string stream and streams the elements into doubles. It should work for any combination of rows and column elements. #include <iostream> #include <fstream> #include <string> #include <sstream> #include <vector> using namespace std; int … Read more
You’d get the spans and map back the text content var text = [].map.call(document.querySelectorAll(‘.topics span’), function(elem) { return elem.textContent; // or elem.dataset.value for the data-attribute }); console.log(text) <div class=”topics”> <span class=”topic” data-value=”hello”>hello</span> <span class=”topic” data-value=”world”>world</span> <span class=”topic” data-value=”one”>one</span> <span class=”topic” data-value=”two”>two</span> <span class=”topic” data-value=”six”>six</span> </div> 2 solved How to combine values in the array? [closed]
Using a simple loop (and assuming l the input list): prev = -float(‘inf’) out = [] for x in l: if x[0]>prev+1: out.append(x) prev=x[0] output: [[0, 100], [5, 600], [9, 300], [11, 100], [14, 300]] 0 solved Remove sequential repeats from python list [closed]
You can use List<List<String>> instead for example : List<List<String>> arrList = new ArrayList<>(); for (int i = 0; i < 5; i++) { List<String> arr = new ArrayList<>(); arr.add(“a” + i); arr.add(“b” + i); arr.add(“c” + i); arrList.add(arr); } System.out.println(arrList); Output [[a0, b0, c0], [a1, b1, c1], [a2, b2, c2], [a3, b3, c3], [a4, b4, … Read more
It seems you are stuck because you are not familiar with the modelisation effort of going from the assignment statement to a solution design. This is a difficult task for everybody, not just beginners. But in your assignment you already got some guidelines. First you have to understand what do you get as input and … Read more
Is this what you mean? print(len([x for x in train[‘Survived’] if x == 1])) For more info, check out list comprehension 1 solved python how to create a new array, list or even a new column with objects from an array, list or column with a set criteria
while (aPhrase[i]) { c = aPhrase[i]; if (isVowel(c)) c=”!”; else if ((i % 3) == 0) c = toupper(c); putchar(c); ++i; } solved C++ How do you make every third letter of a char array into an uppercase letter? [closed]
I think, this is not a sorting but a generation of a new array that accomplish your output, in that case, you could do something like this: 1) First filter all A and all B on different arrays. 2) Then create a new array where progressively you put two elements (or the quantity available) of … Read more
What I commented is how to do it. I assume you’re storing this array in a cache/session where it’s semi-persistent right? What you want to do is append the item to the array. Say your array looks like this: $modules = array( ‘Forums’ => array(‘file’ => ‘link/to/file.php’, ‘enabled’ => TRUE), …..etc ); All you need … Read more
You can encode an array thus: $cars = [ ‘ALFA’ => [ ‘title’ => ‘Alfa Romeo’, ‘models’ => [ … ] ], ‘ACURA’ => [ ‘title’ => ‘Acura’, ‘models’ => [ … ] ], ]; This can then be run through json_encode(). solved Generating JSON with PHP [closed]