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Diffstat (limited to 'ch1/1-13_word-length-histogram.c')
| -rw-r--r-- | ch1/1-13_word-length-histogram.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/ch1/1-13_word-length-histogram.c b/ch1/1-13_word-length-histogram.c index d3115a5..b557417 100644 --- a/ch1/1-13_word-length-histogram.c +++ b/ch1/1-13_word-length-histogram.c @@ -1,4 +1,23 @@ #include <stdio.h> + +/* The C Programming Language: 2nd Edition + * + * Exercise 1-13: Write a program to print a histogram of the lengths of words + * in its input. It is easy to draw the histogram with the bars horizontal; a + * vertical orientation is more challenging. + * + * Answer: Keep an array of lengths that you can add to when you come out of a + * word. At the end of input, you'll have your collection of data. The rest is + * deciding how you want to display it. I chose a horizontal layout for this + * exercise. + * + * To do the vertical, you need to choose a theoretical maximum (80 is probably + * a bit too high) and simply iterate over the data set checking for the word + * length that has that frequency or lower. + * + * TODO: Write the vertical histogram code. + */ + #define IN 1 #define OUT 0 #define MINWLENGTH 2 |