35.给定的字符串中字母顺序前移，其他字符顺序后移。

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
char *fun(char *s)
{
int i, j, k, n;
char *p, *t;
n = strlen(s) + 1;
t = (char *)malloc(n*sizeof(char));
p = (char *)malloc(n*sizeof(char));
j = 0;
k = 0;
for (i = 0;i < n;i++)
{
if (((s[i] >= 'A') && (s[i] <= 'Z')) || ((s[i] >= 'a') && (s[i] <= 'z')))
{
t[j] = s[i];
j++;
}
else
{
p[k] = s[i];
k++;
}
}
for (i = 0;i < k;i++)
t[j + i] = p[i];
t[j + k] = 0;
return t;
}
int main()
{
char s[80];
printf("Please input :");
gets(s);
printf("\nThe result is :%s\n", s);
printf("\nThe result is :%s\n", fun(s));
getchar();
getchar();
return 0;
}