去哪儿网2014年校园招聘笔试题（成都）

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1. implement a function of String randomAlphabetic(int count)

Creats a random string whose length is the number of characters specified;

Characters will be chosen from the set of alphabetic characters.

#include <iostream>#include <string>#include <time.h>using namespace std;string randomAlphabetic(int count){string str;srand((unsigned int)time(NULL));int random;char randomChar;while (count--){random = rand() % 26;if (rand() % 2 == 0){randomChar = 'a' + random;}else{randomChar = 'A' + random;}str += randomChar;}return str;}int main(){int count;while (cin>>count){string str = randomAlphabetic(count);cout<<str<<endl;}return 0;}

2. 已知字母序列【d, g, e, c, f, b, o, a】，请实现一个函数针对输入的一组字符串 input[] = {"bed", "dog", "dear", "eye"}，按照字母顺序排序并打印。

本例的输出顺序为：dear, dog, eye, bed。

3. 有一万个北京单身男女向你提交了基本资料，包括：姓名、性别、年龄、星座，写一段程序尝试找出他们最匹配的一对。