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C++ 2022-03-16 14:50:10
array header, <array>
#include <iostream> #include <array> using namespace std; int main() { array<int,3> myarray {10,20,30}; for (int i=0; i<myarray.size(); ++i) ++myarray[i]; for (int elem : myarray) cout << elem << '\n'; } Add solution -
SQL 2022-03-05 21:20:11
postgresql check total storage
SELECT nspname || '.' || relname AS "relation", pg_size_pretty(pg_relation_size(C.oid)) AS "size" FROM pg_class C LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace) WHERE nspname NOT IN ('pg_catalog', 'information_schema') ... Add solution -
SQL 2022-02-28 13:50:18
deadlock table in mysql
1 141013 6:06:22 2 *** (1) TRANSACTION: 3 TRANSACTION 876726B90, ACTIVE 7 sec setting auto-inc lock 4 mysql tables in use 1, locked 1 5 LOCK WAIT 9 lock struct(s), heap size 1248, 4 row lock(s), undo log entries 4 6 MySQL thread id 155118366, OS thread ha... Add solution -
Python 2022-01-26 06:07:18
themes for ipyhton notebook
# list available themes # onedork | grade3 | oceans16 | chesterish | monokai | solarizedl | solarizedd jt -l # select theme... jt -t chesterish # restore default theme # NOTE: Need to delete browser cache after running jt -r # If this doesn't work, try ... Add solution -
C++ 2022-01-24 17:26:44
static variable in c++
/* this example show where and how static variables are used */ #include <iostream> #include <string> //doing "using namespace std" is generally a bad practice, this is an exception using namespace std; class Player { int health... Add solution -
Other 2022-01-24 05:20:37
PntIDNumbers
#include <iostream> #include <fstream> #include <cstdlib> #include <string> #include <sstream> #define MAX 200 using namespace std; // Function receive address of the first element of an array // Reads file contents and store... Add solution -
PHP 2022-01-22 12:36:36
Upload image laravel 6
<?php namespace App\Http\Controllers\simple_image_upload; use Illuminate\Http\Request; use App\Http\Controllers\Controller; use Validator,Redirect,Response,File; use App\Photo; class ImageUploadController extends Controller {  ... Add solution
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