如何修改C++代码生成8-16位随机字母组合名称？

Hey there! The fix here is straightforward—we just need to replace the fixed 12-length loop with random lengths between 8 and 16 for both the first and last names. Here's how to do it step by step:

Key Changes: #

• Generate a random length for each name (8 to 16 inclusive) using rand()
• Adjust the loop iterations to match these random lengths

Modified Code #

Here's your updated code with the length logic adjusted:

#include <iostream>
#include <ctime>
#include <string> // Added this header explicitly for std::string
using namespace std;

void genID(char letters[26]);

int main() {
    srand(time(0)); // Seed random number generator once at program start
    char letters[26] = {'a', 'b' ,'c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'};
    genID(letters);
}

void genID(char letters[26]) {
    string firstTemp, lastTemp;
    
    // Generate random lengths between 8 and 16 (inclusive)
    int firstLength = rand() % 9 + 8; // rand()%9 gives 0-8, +8 shifts range to 8-16
    int lastLength = rand() % 9 + 8;

    // Build first name with random length
    for(int i = 0; i < firstLength; i++) {
        firstTemp += letters[rand() % 26];
    }

    // Build last name with random length
    for(int i = 0; i < lastLength; i++) {
        lastTemp += letters[rand() % 26];
    }

    // Your existing print logic goes here (example included)
    cout << "Generated First Name: " << firstTemp << endl;
    cout << "Generated Last Name: " << lastTemp << endl;
}

Notes: #

• I added #include <string> since you're using std::string—your original code might have compiled by accident, but it's good practice to include necessary headers explicitly.
• Using += instead of firstTemp = firstTemp + ... is more efficient for string concatenation.
• Each name will have an independent random length between 8 and 16 characters, so they won't always be the same length.

内容的提问来源于stack exchange，提问作者PapaBlank