Solution for Exercise 9-12

ex0912

#include <stdio.h>

int main()
{
    char a,b,c;

    for(a='A';a<='Z';a=a+1)
    {
        for(b='A';b<='Z';b=b+1)
        {
            for(c='A';c<='Z';c=c+1)
            {
                printf("%c%c%c\n",a,b,c);
            }
        }
    }
    return(0);
}

Output

A very long file.

Notes

* You could classify the three variables as integer values, which doesn't affect the rest of the code.

* It would also be acceptable to use the \t escape sequence in Line 13 instead of \n. If so, remember to add a putchar('\n') at the end to clean up the last line of output.

Exercise ex0913 →