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Readability Using Coleman-Liau index
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| #include <stdio.h> | |
| #include <cs50.h> | |
| #include <ctype.h> | |
| #include <string.h> | |
| #include <math.h> | |
| int letter; | |
| int word; | |
| int sentence; | |
| int main(void) | |
| { | |
| // prompt the user with the question | |
| string article = get_string("What's the article?: "); | |
| // set the length of article | |
| int n = strlen(article); | |
| // add +1 if the article starts with alphanumeric letter | |
| if (isalnum(article[0])) | |
| { | |
| word = 1; | |
| } | |
| // count words | |
| for (int i = 0; i < n; i++) | |
| { | |
| // count letters | |
| if (isalnum(article[i])) | |
| { | |
| letter++; | |
| } | |
| // count words | |
| if (/*i < n - 1 &&*/ isspace(article[i]) && isalnum(article[i + 1])) | |
| { | |
| word++; | |
| } | |
| // count sentences | |
| if (/*i > 0 &&*/ (article[i] == '!' || article[i] == '?' || article[i] == '.') && isalnum(article[i - 1])) | |
| { | |
| sentence++; | |
| } | |
| } | |
| // calculate Coleman-Liau index | |
| double grade = 0.0588 * (100.0 * (double)letter / word) - 0.296 * (100.0 * (double)sentence / word) - 15.8; | |
| // debugger | |
| int brad = (int) round(grade); | |
| // printf("Letters: %lf\n Words: %i\n Sentences: %lf\n", (double)letter, word, (double)sentence); | |
| // print result | |
| if (brad <= 1) | |
| { | |
| printf("Before Grade 1\n"); | |
| } | |
| else if (brad < 16) | |
| { | |
| printf("Grade %d\n", brad); | |
| } | |
| else | |
| { | |
| printf("Grade 16+\n"); | |
| } | |
| } | |
| //Do not copy this code, this is made for just a reference and copying is against the academic policy of cs50. | |
| //This is just made for giving a raw idea about how to attempt readability. | |
| //I write a lot of useless comments, don't try to read those. |
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