var arr = [0, 0, 1, 2, 2, 3, 4, 5, 5, 5, 6, 7, 7, 7, 7, 8, 9, 10, 10, 10] var uniq = arr.reduce((all, next) => { var exist = all.find(v => v.key === next) if (exist) { exist.count += 1 exist.val.push(next) } else { all.push({ key: next, count: 1, val: [next] … Read more
Why is sizeof array(type string) 24 bytes with a single space element? Because the size of a std::string object is 24 bytes (on your system). My understanding is that a char is 1 byte Correct. a string is 2 bytes (an extra byte for the \0 character). An array of 2 char objects is indeed … Read more
static IEnumerable<int> Number(int number1, int number2){ for(int i=number1; i<=number2; i++) { if(i%2==1) { yield return i; } } } or static int[] Number(int number1, int number2){ var x = new int[number2]; int y = 0; for(int i=number1; i<=number2; i++) { if(i%2==1) { x[y] = i; y++; } } return x; } This is what you … Read more
I can see a couple of errors in your code. First, as Pete Becker noted (and Lightness Races in Orbit refined), total isn’t initialized, so its value is indeterminate. It could even be an invalid representation of a floating point number (e.g. a NaN ) and it isn’t for sure a valid starting point for … Read more
Perhaps the closest thing in Python to this Javascript array behavior is a dictionary. It’s a hashed mapping. defaultdict is a dictionary that implements a default value. In [1]: from collections import defaultdict In [2]: arr = defaultdict(bool) Insert a couple of True elements: In [3]: arr[10] = True In [4]: arr Out[4]: defaultdict(bool, {10: … Read more
From the documentation. google.maps.Map.setCenter takes a google.maps.LatLng or a LatLngLiteral as an argument. This should work: <li><a onclick=”map.setCenter(new google.maps.LatLng(cityList[0][1], cityList[0][2])); return false”><script>document.write(cityList[0][0]);</script> </a></li> working code snippet: var map; var cityList = [ [‘Atlanta, GA’, 33.840644, -84.238972, 1, “text 0”], [‘Austin, TX’, 30.402887, -97.721606, 2, “text 1”], [‘Boston, MA’, 42.364247, -71.078575, 3, “text 2”], [‘Chicago, IL’, … Read more
So the idea is to have a parent ArrayList of ArrayList. Every time you call the function, pass along the reference to previous results so they can be consolidated. This is just one out of many ways this can be achieved, but should give you a starting point to optimize further. // Initialize and provide … Read more
You have write a for loop from testAgainst and testAgainst.length === 4 that’s why it loops 4 times on toTest You algorithm is good. I don’t see any other possibilities, maybe by using regexp but it depends what you want to do solved Why is this for loop looping through the array 4 times?
Try with this: private static final int MAX = 2; public static void sortZeroOneTwo(int[] input) { int []values = new int[MAX+1]; for (int element: input) { values[element]++; } int j = 0; for (int i = 0 ; i < values.length; i++){ for (int k = 0; k < values[i]; k++){ input[j++] = i; } … Read more
You can do something like this const data = [{date: 2021,name: ‘New York’,price: 452}, {date: 2020,name: ‘New York’,price: 452}, {date: 2021,name: ‘Oregon’,price: 452}] const result = Object.values(data.reduce((res, {name,…rest}) => { return { …res, [name]: { name, values: […(res[name] || {values: []}).values, rest] } } }, [])) console.log(result) solved JavaScript: Convert array of objects into array … Read more
Why is @ad not []? Why would it be? Your code is extremely basic, and it says “if @ad has less than two items, set it to an empty array”. As you clearly show, @ad doesn’t have less than two items, it has three items. Does three seem less than two to you? If you’re … Read more
I believe it should just be a couple of small typos. First, your second line looks like it should be indented, and where you have links[“property”], it looks like you would want link[“property”]. for link in links: payload[f’Links[{link[“property”]}][url]’] = link[‘url’] The reason it is giving you that error is that you are trying to get … Read more
If the value is comma-separated (and not comma+space separated), you can use FIND_IN_SET: SELECT * FROM `table` WHERE FIND_IN_SET(‘lorem ipsum’, `column`); 2 solved mysql: how to select imploded array value [duplicate]
Your root issue is that you want to send a set of port pins to a function. Port Pins are not strings The identifiers PORTA and the like are not strings. They are reserved words for the PIC compilers. They represent an addressible location (either port or memory mapped). The dot notation, PORTA.3, refers to … Read more
printElements takes a single parameter of type ArrayList<String>, but you’re trying to give it two arguments of type ArrayList. 3 solved Using “args” but method still not taking more than one array as parameter? [closed]