Thread: Need help on finding word count

I need to find how many times a word is repeated in a sentence.
I'm almost done but there is a minor issue that I don't know how to fix.
If I input a sentence like "I LIke pIneapples and pIzzas" and search for "I", the output becomes 3 instead of the intended 1.
How do I fix this? The code I have is below.

Code:

#include <stdio.h>
#include "assignment.h"
#include <mem.h>void ex4() {
    char sentence[1000], word[100];
    int snum, wnum, frequency = 0, i, j;
    puts("Enter Sentence");
    gets(sentence);
    puts("Enter word to find its frequency");
    gets(word);

    snum = strlen(sentence);
    wnum = strlen(word);

    for (i = 0; i < snum; i++)
    {
        if (sentence[i] == word[0])
        {
            for (j = 0; j < wnum; j++)
            {
                if (sentence[i + j] != word[j])
                {
                    break;
                }
            }
            if (j == wnum)
            {
                frequency++;
            }
        }
    }
    printf("The string '%s' occurs %d times \n", word, frequency);
}