c语言英语单词逆序输出

以下是C语言实现单词逆序输出的代码示例：

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

void reverse(char *begin, char *end) {
    char temp;
    while (begin < end) {
        temp = *begin;
        *begin++ = *end;
        *end-- = temp;
    }
}

void reverseWords(char *s) {
    char *word_begin = NULL;
    char *temp = s;

    while (*temp) {
        if ((word_begin == NULL) && (*temp != ' ')) {
            word_begin = temp;
        }
        if (word_begin && ((*(temp + 1) == ' ') || (*(temp + 1) == '\0'))) {
            reverse(word_begin, temp);
            word_begin = NULL;
        }
        temp++;
    }
    reverse(s, temp - 1);
}

int main() {
    char s[] = "hello world";    printf("Original string: %s\n", s);
    reverseWords(s);
    printf("Reversed string: %s\n", s);
    return 0;
}

运行结果为：

Original string: hello world
Reversed string: world hello