UVA11192 Group Reverse

问题链接：UVA11192 Group Reverse。入门练习题，用C语言编写程序。

AC的C语言程序如下：

/* UVA11192 Group Reverse */

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

#define MAXN 100

int main(void)
{
    int n, start, end, i;
    char s[MAXN], c;

    while(scanf("%d", &n) != EOF && n != 0) {
        scanf("%s", s);

        n = strlen(s) / n;
        for(i=0; s[i]; i+=n) {
            start = i;
            end = i + n - 1;
            while(start < end) {
                c = s[start];
                s[start] = s[end];
                s[end] = c;

                start++;
                end--;
            }
        }

        printf("%s\n", s);
    }

    return 0;
}