Question

I’m trying to create a pyramid in C, i need to get the next pattern:

    A
   ABA
  ABCBA
 ABCDCDA
ABCDEDCBA

I need to use nested for loops, but the decrementing is not working properly for me, this is my code:

int main(void)

{

    int i, j, k, g;
    char userLatter;
    printf("please enter an uppercase letter:\n");
    scanf("%c", &userLatter);
    int asci = userLatter;

    for (i = 0; i < 5; i++)
    {

        for (j = 4; j > i; j--)
        {
            printf(" ");
        }

        asci = userLatter;
        for (k = 0; k <= i ; k++)
        {
         printf("%c", asci++);
        }


        for (g = 1; g <= i; g++)
        {
            printf("%c", --asci);
        }

        printf("\n"); 
    }

}

this is the input “a”

and the output im getting is:

    a
   abb
  abccb
 abcddcb
abcdeedcb

Can you please tell me what am I doing wrong?

tnx

Answer 1

Add a:

--asci;

between the two for loops.

In the first loop, asci++ performs a postfix increment: the expression is evaluated to asci and then the object is decremented.