学步园

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

char str[110];
char ch[110];

void reverse( )
{
int len, p, q;
    p = strlen(ch) - 1;
for(q = 0; q < p; q++, p--) {
char c = ch[q];
        ch[q] = ch[p];
        ch[p] = c;
    }
    printf("%s",ch);
}

int main( )
{
int T, i, k;
    scanf("%d", &T);
    getchar();
while(T--) {
        gets(str);
        i = 0;
while(str[i]) {
            k = 0;
if (str[i] == ' ') {
                printf(" ");
++i;
continue;
            }
while(str[i] != ' ' && str[i] != '\0')
             ch[k++] = str[i++];
             ch[k] = '\0'; //刚开始没加这个，出现莫名其妙的错误 
               reverse( ); //倒置字符串 
        }
        puts("");
    }
return 0;
}