#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
 
int main() {
    FILE *file;
    char filename[100];
    char word[100], largest[100] = "";
    int maxLen = 0;
 
    // Step 1: Get the filename from user
    printf("Enter file name: ");
    scanf("%s", filename);
 
    // Step 2: Open the file
    file = fopen(filename, "r");
    if (file == NULL) {
        printf("Unable to open file!\n");
        return 0;
    }
 
    // Step 3: Read each word and check its length
    while (fscanf(file, "%s", word) != EOF) {
        // Remove punctuation if any
        int len = strlen(word);
        while (len > 0 && ispunct(word[len - 1])) {
            word[len - 1] = '\0';
            len--;
        }
 
        if (len > maxLen) {
            maxLen = len;
            strcpy(largest, word);
        }
    }
 
    fclose(file);
 
    // Step 4: Display result
    if (maxLen > 0)
        printf("The largest word is: '%s' (Length: %d)\n", largest, maxLen);
    else
        printf("No words found in file.\n");
 
    return 0;
}