生成 N 个随机十六进制数
原文:https://www . geesforgeks . org/generate-n-random-十六进制-numbers/
给定一个正整数 N ，任务是生成 N 随机的十六进制整数。
示例:
输入:N = 3 T3】输出:T5】f9ad0d 9 e19b 24 CD 01 A5E
方法:借助用于生成随机整数的兰德()函数可以解决给定的问题。可以创建字符数组，该数组将所有可能的字符存储在十六进制符号中，并从该数组中随机选择字符。
下面是上述方法的实现:
C++
// C++ program for the above approach
#include <bits/stdc++.h>
using namespace std;
// Maximum length of the random integer
const int maxSize = 10;
// Function to generate N Hexadecimal
// integers
void randomHexInt(int N)
{
srand(time(0));
// Stores all the possible characters
// in the Hexadecimal notation
char hexChar[]
= { '0', '1', '2', '3', '4', '5',
'6', '7', '8', '9', 'A', 'B',
'C', 'D', 'E', 'F' };
// Loop to print N integers
for (int i = 0; i < N; i++) {
// Randomly select length of the
// int in the range [1, maxSize]
int len = rand() % maxSize + 1;
// Print len characters
for (int j = 0; j < len; j++) {
// Print a randomly selected
// character
cout << hexChar[rand() % 16];
}
cout << '\n';
}
}
// Driver Code
int main()
{
int N = 3;
randomHexInt(N);
return 0;
}
Java 语言(一种计算机语言，尤用于创建网站)
// Java program for the above approach
class GFG{
// Maximum length of the random integer
static int maxSize = 10;
// Function to generate N Hexadecimal
// integers
static void randomHexInt(int N)
{
// Stores all the possible characters
// in the Hexadecimal notation
char hexChar[]
= { '0', '1', '2', '3', '4', '5',
'6', '7', '8', '9', 'A', 'B',
'C', 'D', 'E', 'F' };
// Loop to print N integers
for (int i = 0; i < N; i++) {
// Randomly select length of the
// int in the range [1, maxSize]
int len = (1 + (int)(Math.random() * 100)) % maxSize + 1;
// Print len characters
for (int j = 0; j < len; j++) {
// Print a randomly selected
// character
System.out.print(hexChar[(1 + (int)(Math.random() * 100)) % 16]);
}
System.out.println();
}
}
// Driver Code
public static void main (String[] args)
{
int N = 3;
randomHexInt(N);
}
}
// This code is contributed by sanjoy_62.
Python 3
# Python3 program for the above approach
import random,math
# Maximum length of the random integer
maxSize = 10;
# Function to generate N Hexadecimal
# integers
def randomHexInt(N) :
# Stores all the possible characters
# in the Hexadecimal notation
hexChar = [ '0', '1', '2', '3', '4', '5',
'6', '7', '8', '9', 'A', 'B',
'C', 'D', 'E', 'F'];
# Loop to print N integers
for i in range(N) :
# Randomly select length of the
# int in the range [1, maxSize]
Len = math.floor(random.random() * (maxSize - 1) + 1)
# Print len characters
for j in range(Len) :
# Print a randomly selected
# character
print(hexChar[math.floor(random.random() * 16)],end = "");
print();
# Driver Code
if __name__ == "__main__" :
N = 3;
randomHexInt(N);
# This code is contributed by AnkThon
C
// C# program for the above approach
using System;
using System.Collections.Generic;
using System.Linq;
public class GFG {
// Maximum length of the random integer
static int maxSize = 10;
// Function to generate N Hexadecimal
// integers
static void randomHexInt(int N)
{
// Stores all the possible characters
// in the Hexadecimal notation
char[] hexChar
= { '0', '1', '2', '3', '4', '5',
'6', '7', '8', '9', 'A', 'B',
'C', 'D', 'E', 'F' };
// For random generator
Random rand = new Random();
// Loop to print N integers
for (int i = 0; i < N; i++) {
// Randomly select length of the
// int in the range [1, maxSize]
int len = rand.Next() % maxSize + 1;
// Print len characters
for (int j = 0; j < len; j++) {
// Print a randomly selected
// character
Console.Write(hexChar[rand.Next() % 16]);
}
Console.WriteLine();
}
}
// Driver Code
public static void Main (string[] args) {
int N = 3;
randomHexInt(N);
}
}
// This code is contributed by code_hunt.
java 描述语言
<script>
// JavaScript Program to implement
// the above approach
// Maximum length of the random integer
const maxSize = 10;
// Function to generate N Hexadecimal
// integers
function randomHexInt(N) {
// Stores all the possible characters
// in the Hexadecimal notation
let hexChar
= ['0', '1', '2', '3', '4', '5',
'6', '7', '8', '9', 'A', 'B',
'C', 'D', 'E', 'F'];
// Loop to print N integers
for (let i = 0; i < N; i++) {
// Randomly select length of the
// int in the range [1, maxSize]
let len = Math.random() * (maxSize - 1) + 1;
// Print len characters
for (let j = 0; j < len; j++) {
// Print a randomly selected
// character
document.write(hexChar[Math.floor(Math.random() * (16))]);
}
document.write("<br>")
}
}
// Driver Code
let N = 3;
randomHexInt(N);
// This code is contributed by Potta Lokesh
</script>
Output:
B71C3
EC3BBC90
82410C0D
时间复杂度: O(NM)，其中 M 代表随机字符串的最大长度。* 辅助空间: O(1)
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