#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
struct record {
char word[20];
int count;
struct record *next;
};
int read_word(FILE *fp, char *word);
void add_word(char *word);
struct record *head = NULL;
int main(int argc, char *argv[])
{
FILE *fp;
char word[20];
struct record *p;
if (argc != 2) {
printf("missing file argument\n");
return 1;
}
fp = fopen(argv[1], "r");
if (fp == NULL) {
printf("can't open %s\n", argv[1]);
return 1;
}
while (read_word(fp, word)) {
add_word(word);
}
fclose(fp);
for (p = head; p != NULL; p = p->next)
printf("%s %d\n", p->word, p->count);
return 0;
}
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