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问题[случайные-числа]

Martin Hope
Youra_P
Asked: 2023-03-04 02:50:54 +0000 UTC
  • 5

需要生成两个值不重复的Lua表。此外，该表不应包含 (a,b) 和 (b,a) 之类的行。这样的字符串将被认为是相同的 (a,b) = (b,a)。

有一个示例（如 Mike V. 的示例）生成一个包含一列非重复值的表：

math.randomseed(os.time()) -- first, sets a seed for the pseudo-random generator
math.random(); math.random(); math.random();

local  function my_random(t, from, to)  -- second, exclude duplicates
   local num = math.random (from, to)
   if t[num] then num = my_random(t, from, to) end
   t[num] = num
   return num
end

local t = {}    -- initialize  table with not duplicate values
for i =1, 30 do
  X = my_random (t, 1, 50)
  print (i, "=" ,X)
 end

我需要类似的，但是两列（最好立即驱动到 Lua 表中）：

1 -  1,3
2 -  2,4
3 -  4,3
4 -  ...

先感谢您。

случайные-числа
Martin Hope
Diana
Asked: 2022-07-23 21:00:28 +0000 UTC
  • 0

我有一个应用程序，它的工作原理是处理呼叫队列。处理的号码存储在一个静态数组中，随机一段时间后，您需要将一个随机手机号码添加到队列中。问题是，这怎么能被执行？

#include <iostream>
#include <Windows.h>
#include <random>
#include <ctime>
using namespace std;
void addNum(int* arr,const int count) {
    srand(time(0));
    for (size_t i = 0; i < count; i++)
    {
        arr[i] = rand() % (1000000000 + 1- 100000000)+ 100000000;
    }
}
void deleteNum(int* arr, const int count);
void show(int* arr, const int  count){
    for (size_t i = 0; i < count; i++)
    {
        cout << i+1<<") " << "+994" << arr[i] << '\n';
    }
}
int main(){
    setlocale(LC_ALL, "rus");
    const int count = 5;//максимум номеров в очереди
    int num[count]{};
    addNum(num, count);
    cout << "Текущие номера в очереди:\n";
    show(num, count);
    cout << "Текущий обрабатываемый номер:\n";
    cout << "+994" << *num;//первый номер в массиве - обрабатываемый
}
c++ случайные-числа
Martin Hope
Alex_Lynx
Asked: 2022-08-08 22:49:20 +0000 UTC
  • -2

今天是个好日子！有一个数字数组（里面的所有值只能是1到3）

new int[]{3,3,2,3,3,2,2,3,2,2,1,1,1,1}, вот например такой

有必要更改数组单元格 [i] 的值，以使每个 [i] 更改为不同的有效值。例如，如果第一个值 i=3，则应将其更改为 1 或 2。以此类推。

告诉我怎么做？也就是说，实际上我需要从两个可能的值中随机选择一个

java случайные-числа
Martin Hope
Apricot
Asked: 2022-06-16 17:29:52 +0000 UTC
  • -2

有必要在几列中显示随机字符。

import random

n = str()
n1 = str()
n2 = str()
n3 = str()
n4 = str()
n5 = str()
n6 = str()
n7 = str()
n8 = str()
n9 = str()
n10 = str()

while True:
    n = random.choice (["!", "№", "#", "$", "%", "@", "^", "&", "*"])
    n1 = random.choice (["!", "№", "#", "$", "%", "@", "^", "&", "*"])
    n3 = random.choice (["!", "№", "#", "$", "%", "@", "^", "&", "*"])
    n4 = random.choice (["!", "№", "#", "$", "%", "@", "^", "&", "*"])
    n5 = random.choice (["!", "№", "#", "$", "%", "@", "^", "&", "*"])
    n6 = random.choice (["!", "№", "#", "$", "%", "@", "^", "&", "*"])
    n7 = random.choice (["!", "№", "#", "$", "%", "@", "^", "&", "*"])
    n8 = random.choice (["!", "№", "#", "$", "%", "@", "^", "&", "*"])
    n9 = random.choice (["!", "№", "#", "$", "%", "@", "^", "&", "*"])
    n10 = random.choice (["!", "№", "#", "$", "%", "@", "^", "&", "*"])
    print(n, n1, n2, n3, n4, n5, n6, n7, n8, n9, n10)
python случайные-числа
Martin Hope
Korpag
Asked: 2022-01-20 16:47:10 +0000 UTC
  • 2

FlipCard 出售了许多卡片（150 张）。所以你需要确保当你启动应用程序时，它们总是随机打乱的。

import 'package:flutter/material.dart';
import 'package:flip_card/flip_card.dart';

class Lessons extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
  appBar: AppBar(title: Text('Lessons')),
  body: Container(
    child: ListView(
      children: [
        Container(
          height: 100.0,
          width: 100.0,
          child: FlipCard(
            direction: FlipDirection.HORIZONTAL, // default
            front: Container(
              decoration: BoxDecoration(color: Colors.red),
              child: Text('Front'),
            ),
            back: Container(
              decoration: BoxDecoration(color: Colors.yellow),
              child: Text('Back'),
            ),
          ),
        ),
        Container(
          height: 100.0,
          width: 100.0,
          child: FlipCard(
            direction: FlipDirection.HORIZONTAL, // default
            front: Container(
              decoration: BoxDecoration(color: Colors.red),
              child: Text('Front'),
            ),
            back: Container(
              decoration: BoxDecoration(color: Colors.yellow),
              child: Text('Back'),
            ),
          ),
        ),
        Container(
          height: 100.0,
          width: 100.0,
          child: FlipCard(
            direction: FlipDirection.HORIZONTAL, // default
            front: Container(
              decoration: BoxDecoration(color: Colors.red),
              child: Text('Front'),
            ),
            back: Container(
              decoration: BoxDecoration(color: Colors.yellow),
              child: Text('Back'),
            ),
          ),
        ),
        Container(
          height: 100.0,
          width: 100.0,
          child: FlipCard(
            direction: FlipDirection.HORIZONTAL, // default
            front: Container(
              decoration: BoxDecoration(color: Colors.red),
              child: Text('Front'),
            ),
            back: Container(
              decoration: BoxDecoration(color: Colors.yellow),
              child: Text('Back'),
            ),
          ),
        ),
      ],
    ),
  ),
);
}
}

示例代码，我重复一遍，您需要确保 Container 始终处于随机顺序。

我知道我需要通过 shuffle 做一些事情，但没有成功。

случайные-числа