c语言将一句话的单词进行倒置

以下是用 C 语言实现将一句话的单词进行倒置的代码：

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

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

void reverseWords(char* str) {
    char* word_start = NULL;
    char* temp = str;

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

    reverse(str, temp - 1);
}

int main() {
    char str[100];

    printf("Enter a sentence: ");
    fgets(str, 100, stdin);

    printf("Original sentence: %s", str);
    reverseWords(str);
    printf("Reversed sentence: %s", str);

    return 0;
}

输入一个句子后，程序会将句子中每个单词的顺序进行倒置，输出结果为倒置后的句子。