#include <stdio.h>
#define  MAX 100



int IsNumIn(char word[]);
int IsSpcIn(char word[]);
void Trim(char oldWord[], char newWord[]);
void Seg(char words[], char wArray[][100] );

int main()
{
    char word[MAX];
    char word1[MAX]={0};
    char word2[MAX][MAX]={0};


    gets(word);

    Trim(&word[MAX], &word1[MAX]);

    if (IsNumIn(&word1[MAX]))
    {
        printf("error");
    }
    else
    {
        if (IsSpcIn(&word1[MAX]))
        {
            Seg(&word1[MAX], &word2[MAX][MAX]);
            puts(word2[MAX][MAX]);
        }
        else
            puts(word1);
    }

   


    return 0;
}

int IsNumIn(char word[])
{
    int i;

    for(i=0; word[i]!='\0'; i++)
        if(word[i]>='0' && word[i]<='9')
            return 1;

    return 0;
}

int IsSpcIn(char word[])
{
    int i;

    for(i=0; word[i]!='\0'; i++)
        if(word[i]==' ')
            return 1;

    return 0;
}


void Trim(char oldWord[], char newWord[])
{
    char *pold={0}, *pnew={0};
   
   
    pold=oldWord;
    pnew=newWord;

    while (*pold!='\0')
    {
        if (*pold==' ' || *pold=='\n' || *pold=='\t')
            *pold++;
        else
            
            break;
    }

    while (*pold!='\0')
        *pnew++ = *pold++;

   

    for (*pnew='\0', *pnew--; *pnew==' ' || *pnew=='\n' || *pnew=='\t'; *pnew--)
        *pnew = *pnew+1;

    ++*pnew;
    *pnew= '\0';
}


void Seg(char words[], char wArray[][100] )
{
    int i, j, k;

    for (i=0, j=0, k=i; words[i]!='\0'; i++, k++)
    {
        if (words[i]==' ')
        {
            j+=1;
            k=-1;
        }
        else
            wArray[j][k]=words[i];
    }
}


哪些地方有问题。。

不明觉厉

    for (i=0, j=0, k=i; words[i]!='\0'; i++, k++)
    {
        if (words[i]==' ')
        {
            j+=1;
            k=-1;
        }

简单说说：
这里k的变化有问题 我估计要不就是 k-=1 要不就是k=i-1  反正k=-1感觉怪怪的