编写一个C函数，接受一个英语句子作为参数，并返回句子中最长的单词

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

char* findLongestWord(char* sentence) {
    char* longestWord = NULL;
    int maxLength = 0;

    char* word = strtok(sentence, " ");
    while (word != NULL) {
        int length = strlen(word);
        if (length > maxLength) {
            maxLength = length;
            longestWord = word;
        }
        word = strtok(NULL, " ");
    }

    return longestWord;
}

int main() {
    char sentence[] = "This is a sample sentence";
    char* longestWord = findLongestWord(sentence);
    printf("The longest word is: %s\n", longestWord);

    return 0;
}