在没有指针的情况下提取C语言句子的前两个单词

#include <stdio.h>

int main() {
    char sentence[100];
    printf("请输入一个句子：");
    fgets(sentence, sizeof(sentence), stdin);

    int wordCount = 0;
    char* currentWord = sentence;

    for (int i = 0; sentence[i] != '\0'; i++) {
        if (sentence[i] == ' ' || sentence[i] == '\t') {
            sentence[i] = '\0';
        }
        else if ((i == 0 || sentence[i - 1] == ' ' || sentence[i - 1] == '\t') && (sentence[i] >= 'a' && sentence[i] <= 'z' || sentence[i] >= 'A' && sentence[i] <= 'Z' || sentence[i] >= '0' && sentence[i] <= '9')) {
            currentWord = &sentence[i];
            wordCount++;
        }

        if (wordCount == 2) {
            break;
        }
    }

    printf("前两个单词为：%s %s\n", currentWord, currentWord + strlen(currentWord) + 1);

    return 0;
}