How do you get the output12345 1234 123 12 1?

Answer 1

printf ("12345 1234 123 12 1\n");

... or, did you mean to do it with loops ? ...

int i, j;

for (i=5; i>0; i--) {

for (j=1; j<=i; j++) printf ("%d", j);

printf (" ");

}

printf ("\n");