传话游戏 2013编程之美

 我写了一个答案,在我的编译器是可以通过的,提交之后给出runtime error.甚是费解,求那个高人,大婶,帮忙看看

 

//author bruce
//2013/4/17
#include <string>
#include <iostream>
#include <map>
#include <cstdio>
#include <cstring>
#include <cmath>
using namespace std;

map<string,string> WORDS;
char a_word[20],b_word[20]; //字符长度限制
char Total_words[100];  //alice说的话
char    *p;
int  T,M,N;//分别表示组数,转换列表长度,以及参赛的人数
char *d=" ";//delim
void passMessage();
int main()
{
    cout<<"请输入测试数据组数"<<endl;
    scanf("%d%*c",&T);
    for(int NM_NUM = 1;NM_NUM <= T;NM_NUM++)
    {
        WORDS.clear();
        cout<<"请分别输入参赛人数和列表长度(注意 人数一定要大于1人,否则传话又有什么意思呢)"<<endl;
        scanf("%d %d%*c",&N,&M);


        for(int  i = M;i > 0;i--)
        {
            cout<<"请分别输入转换前单词a,和转换后单词b"<<endl;
            scanf("%s %s%*c",a_word,b_word);
            WORDS[a_word] = b_word;
        }
        cout<<"请输入alice想说的话"<<endl;
        gets(Total_words);
        p = strtok(Total_words,d);
        printf("传话完毕之后 Case #%d:\n ",NM_NUM);
        //cout<<"传话完毕之后"<<endl;
        passMessage();

        while(  p=strtok(NULL,d)  )
        {

            cout<<"";
            passMessage();
        }
        cout<<endl;
    }
    return 0;
}
void passMessage()
{
    string messageWords;
    messageWords = p;
    bool judge;
    for(int i = 1;i < N;i++)
    {
        judge = WORDS.count(messageWords);
        if(judge) messageWords = WORDS[messageWords];
        else
            break;
    }
    cout<<messageWords<<endl;
}