CS256 - Fundamentals of Structured Programming

Displaying exercises/e6/solution/p5.c

#include <stdio.h>

/**
 * Print three columns of numbers followed by the ASCII character for that
 * number.  The first column is in the range 32 to 63 in steps of 1. The second
 * columns 32 more than that and the third is 64 more than that.
 * - Print each columns number right aligned to three characters followed by
 *   a space then the ASCII character for that number.  Use tabs between
 *   columns and a newline at the end of the third column.
 * Hints: In printf, %#d will format a decimal number to be right aligned #
 *    spaces and %c prints the character of the number given. Make multiple
 *    printfs (w/o newlines) to output one line of text, so consider one
 *    printf / column.
 * 
 * Example output:
 *  32      64 @    96 `
 *  33 !    65 A    97 a
 *  34 "    66 B    98 b
 *  35 #    67 C    99 c
 * ...
 *  62 >    94 ^   126 ~
 *  63 ?    95 _   127 
 */

int main(void)
{
  int c;
  int lower, upper, step;

  lower = 32;
  upper = 63;
  step = 1;

  c = lower;
  while (c <= upper) {
    printf("%3d %c\t",c,c);
    printf("%3d %c\t",c+32,c+32);
    printf("%3d %c\n",c+64,c+64);
    c = c + step;
  }

  return 0;
}