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readability.c
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readability.c
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#include <stdio.h>
#include <cs50.h>
#include <math.h>
#include <string.h>
float count(string line);
int main(void)
{
//user prompt
string line1 = get_string("Text = ");
float index;
//calling the function count
float index1 = count(line1);
//rounding the index
int index2 = round(index1);
if (index2 < 1)
{
printf("Before Grade 1\n");
}
else if (index2 >= 16)
{
printf("Grade 16+\n");
}
else
{
printf("Grade %i\n", index2);
}
}
float count(string line)
{
int n = strlen(line);
int letters = 0;
int sent = 0;
//for the last word
int word = 1;
//for counting the number of letters, words and sentences
for (int i = 0; i < n; i++)
{
if (((line[i] >= 65) && (line[i] <= 90)) || ((line[i] >= 97) && (line[i] <= 122)))
{
letters++;
}
if (line[i - 1] == ' ')
{
word++;
}
if ((line[i] == '.') || (line[i] == '!') || (line[i] == '?'))
{
sent++;
}
}
//for finding out the index
float L = ((float)letters / (float)word * 100);
float S = ((float)sent / (float)word * 100);
float index = 0.0588 * L - 0.296 * S - 15.8;
return index;
}