Question

I need a program in C that counts the number of the occurences of 6 specific words (house, person, dog, door, long, mat) from a file. It should read the input file and print out how many of these strings occur in the file. The file is arbitrary but might contain something like : blue house person garage person dog door couch long mat house dog boom door person (so there are more words than just the ones I need to count).

Answer 1

CODE:

#include <stdlib.h>
#include <string.h>
#include <ctype.h>
int main()
{
FILE *fptr;   
int i, len, index;

// List of distinct words
char words[6][10]={"house", "person", "dog", "door", "long", "mat"};
char word[50];
char *temp;

// Count of distinct words
int count[6];
fptr = fopen("input.txt", "r");

/* Exit if file not opened successfully */
if (fptr == NULL)
{
printf("Unable to open file.\n");
exit(0);
}
// Initialize words count to 0
for (i=0; i<6; i++)
count[i] = 0;   
while (fscanf(fptr, "%s", word) != EOF)
{
// Convert word to lowercase
strlwr(word);
// Remove last punctuation character
len = strlen(word);
if (ispunct(word[len - 1]))
word[len - 1] = '\0';
for(i=0;i<6;i++)
{
temp=words[i];
if((strcmp(temp,word))==0)
count[i]++;
}
}   
fclose(fptr);
//Print occurrences of all words in file.
printf("\nOccurrences of all words in file: \n");
for (i=0; i<6; i++)
{
printf("%-15s => %d\n", words[i], count[i]);
}
return 0;
}

SCREENSHOTS:

#include <stdio.h> #include <stdlib.h> #include <string.h> #include <ctype.h> int main() FILE *fptr: int i, len, index: // List of distinct vords char words [6] [10]-{"house", "person", "dog", "door","long", "mat"); char word[50]: char *temp; // Count of distinct words int count [6]; fptr - fopen("input.txt", "r"); /* Exit if file not opened successfully +/ if (fptr -- NULL) printf("Unable to open file. \n"); exit(0); - // Initialize words count to O for (i=0; i<6; i++) count[i] = 0; while (fscanf(fptr, " ", word) != EOF) // Convert vord to lovercase strlwr (word): // Remove last punctuation character

len = strlen(word); if (ispunct (word[len - 1])) word[len - 1] = '\0'; for(i=0;i<6;i++) temp=words[i] || if((strcmp (temp, word))==0) count[i]++; fclose(fptr); //Print occurrences of all words in file. printf("\nOccurrences of all words in file: \n"); for (i=0; i<6; i++) printf("4-15s => #d\n", words[i], count[i]); - } return 0;

C:\Program Files (x86)\Dev- all words in file: Occurrences of house person dog door long mat 111111 Process exited normally. Press any key to continue . . .

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