C程序中的分割错误11错误，我必须计算输入的单词的出现次数

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

#define MAX_WORDS 1000

void countWords(char *input) {
    char *words[MAX_WORDS];
    int count[MAX_WORDS] = {0};
    int numWords = 0;

    // 分割输入文本为单词
    char *word = strtok(input, " ,.!?"); // 根据实际情况可添加其他分隔符
    while (word != NULL && numWords < MAX_WORDS) {
        words[numWords++] = word;
        word = strtok(NULL, " ,.!?");
    }

    // 计算单词出现次数
    for (int i = 0; i < numWords; i++) {
        for (int j = i; j < numWords; j++) {
            if (strcmp(words[i], words[j]) == 0) {
                count[i]++;
            }
        }
    }

    // 输出结果
    for (int i = 0; i < numWords; i++) {
        if (count[i] > 0) {
            printf("%s: %d\n", words[i], count[i]);
        }
    }
}

int main() {
    char input[1000];
    
    printf("请输入文本：");
    fgets(input, sizeof(input), stdin);
    input[strcspn(input, "\n")] = '\0'; // 去除换行符
    
    countWords(input);
    
    return 0;
}