URAL 1612. Tram Forum（字符串啊 ）

题目链接：http://acm.timus.ru/problem.aspx?space=1&num=1612

1612. Tram Forum

Time limit: 0.5 second

Memory limit: 64 MB

Tram, trolleybus, and bus drivers talk at the tram forum. We have read all messages posted at the forum during last month and discovered an interesting rule. Users in whose messages the word “tram”
occurs more often than the word “trolleybus” are tram drivers. Similarly, users in whose messages the word “trolleybus” is more frequent than the word “tram” are trolleybus drivers. All other users of the tram forum are bus drivers. Given this information,
can you determine who has posted the latest message at the tram forum?

Input

You are given the latest message at the tram forum. The message consists of lowercase English letters, spaces, line breaks, and punctuation marks: periods, commas, dashes, colons, and exclamation and
question marks. The total length of the message is at most 10000 symbols. Words consist of letters and can be separated by spaces, line breaks, and punctuation marks.

Output

Output “Tram driver” if the user who has posted the latest message is a tram driver; output “Trolleybus driver” if she is a trolleybus driver; and output “Bus driver” if she is a bus driver.

Samples

input	output
of course, tram is the best transport in the world!	Tram driver
yes, yekaterinburg trams are the best trams in the world, but i like my trolleybus too.	Trolleybus driver
read forum.tr.ru every day! you can learn much about tram drivers and trolleybus drivers.	Bus driver

代码如下：

#include <cstdio>
#include <cmath>
#include <cstring>
#include <string>
#include <cstring>
#include <vector>
#include <map>
#include <iostream>
#include <algorithm>
using namespace std;
char s[10047];
int judge(char c)
{
    if(c >= 'a' && c <= 'z')
    {
        return 1;
    }
    return 0;
}
int main()
{
    char s1[17];
    int a = 0, b = 0;
    while(~scanf("%s",&s))
    {
        memset(s1, '\0',sizeof(s1));
        int len = strlen(s);
        for(int i = 0; i < len; i++)
        {
            if(!judge(s[i]))
            {
                continue;
            }
            int k = 0;
            while(judge(s[i]))
            {
                s1[k++] = s[i];
                i++;
            }
            if(strcmp(s1, "tram") == 0)
            {
                a++;
            }
            if(strcmp(s1, "trolleybus") == 0)
            {
                b++;
            }
        }
    }
    //printf("a:%d b:%d\n",a,b);
    if(a > b)
    {
        printf("Tram driver\n");
    }
    else if(a < b)
    {
        printf("Trolleybus driver\n");
    }
    else
    {
        printf("Bus driver\n");
    }
    return 0;
}