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Text stream K&R exercises
01-25-2010
01-25-2010
01-25-2010
)/*
* hist.c
*
* Exercise 1-13. Write a program to print a histogram of the lengths of words in its input.
* This version prints a horizontal histogram. It uses the character █ for the bars.
*
*/
#include <stdio.h>
#define MAX_WORD_LENGTH 30 // The maximum number of letters in a word.
#define NUMBER_WORDS 0 // To call the first member of the array.
int wordLength [MAX_WORD_LENGTH]; // array to hold the counts; zero is the number of words
main() {
int c; // counter
int character; // the character we're looking at
int p; // printing counter
int s; // printing symbol
for (c = 0; c <= MAX_WORD_LENGTH; c++) {
wordLength[c] = 0;
} // end initialization for loop
c = 0; // set count to zero
while ((character = getchar()) != EOF) { // get the character, stuff it into character, check for EOF
if ((character >= 'a' && character <= 'z') || // if it's a lower case letter or
character >= 'A' && character <= 'Z') { // an upper case letter
c++; //increment the counter
} // end if
else { // it's the end of the word, c holds the length of the word we just found.
wordLength[c]++;
wordLength[NUMBER_WORDS]++; // increment number of words
c = 0; // re-set the counter for the next word
} // end else
} // end while loop
/*******************
Printing- we've left the while loop because an EOF showed up
*******************/
for (c = 1; c <= MAX_WORD_LENGTH; c++) {
/* Note that this for loop starts with one, not zero.
This is because zero holds the number of words,
and each word had at least one letter. */
/**************************************
This is a test printing sequence I used to make sure the right
members of the array were incrementing. I left it here in case
final protective fire full panic testing was needed.
printf("C-");
printf("%d", c);
printf(" is ");
printf("%d \n", wordLength[c]);
**************************************/
p = ((wordLength[c] / wordLength[MAX_WORD_LENGTH]) / 2); // Each symbol is 2%
printf("%d", c);
printf(" letters: ");
for (s = 1; s <= p; s++) {
printf("█");
} // end printing for loop
printf("\n");
} // end for loop
} // end main
02-03-2010
/*
* hist.c
*
* Exercise 1-13. Write a program to print a histogram of the lengths of words in its input.
* This version prints a horizontal histogram. It uses the character █ for the bars.
*
*/
#include <stdio.h>
#define MAX_WORD_LENGTH 30 // The maximum number of letters in a word.
#define NUMBER_WORDS 0 // To call the first member of the array.
float wordLength [MAX_WORD_LENGTH]; // array to hold the counts; zero is the number of words
main() {
int c; // counter
int character; // the character we're looking at
float p; // printing counter
int s; // printing symbol
for (c = 0; c <= MAX_WORD_LENGTH; c++) {
wordLength[c] = 0;
} // end initialization for loop
c = 0; // set count to zero
while ((character = getchar()) != EOF) { // get the character, stuff it into character, check for EOF
if ((character >= 'a' && character <= 'z') || // if it's a lower case letter or
character >= 'A' && character <= 'Z') { // an upper case letter
c++; //increment the counter
} // end if
else { // it's the end of the word, c holds the length of the word we just found.
wordLength[c]++;
wordLength[NUMBER_WORDS]++; // increment number of words
c = 0; // re-set the counter for the next word
} // end else
} // end while loop
/*******************
Printing- we've left the while loop because an EOF showed up
*******************/
for (c = 1; c <= MAX_WORD_LENGTH; c++) {
/* Note that this for loop starts with one, not zero.
This is because zero holds the number of words,
and each word had at least one letter. */
/**************************************
This is a test printing sequence I used to make sure the right
members of the array were incrementing. I left it here in case
final protective fire full panic testing was needed.
printf("C-");
printf("%d", c);
printf(" is ");
printf("%f \n", wordLength[c]);
**************************************/
p = ((wordLength[c] / wordLength[NUMBER_WORDS]) * 100); // Each symbol is 1%
printf("%2.0d", c);
printf(" letters:");
for (s = 1; s <= p; s++) {
printf("█");
} // end printing for loop
printf("\n");
} // end for loop
} // end main|
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