Thread: printing a triangle with $ inside

Hello guys!

I need to print a shape like this:
*
*$*
*$$$*
*$ $$*
*$$$ $$*
*$$$ $$$$*
*$ $$$$$ $*
*$$$$ $$$$$ *
*****************


Instead of a space, a dollar is printed, and from the 2nd line it counts 5$ and then prints a double space.

Now, let's say that the number of rows is 5, so I have this:

*
* *
*$$$*
*$$$$$*
*$$$$$$$*

and I don't know what condition I need to write within the loop, so that it will work. Any suggestions?

From your input which you shared,
Check the logic on
1. last line printing.
2. Why there is space instead of $ symbol on second line.

Ok, here's my code:

Code:

# include <stdio.h>
# include <stdlib.h>




int main()
{


    int rowNum, row, colNum, col1, col2, counter = 0;


    printf("Enter row number\n");
    scanf("%d", &rowNum);
    colNum = rowNum - 1;


    for (row = 1; row <= rowNum; row++)
    {
        for (col1 = 1; col1 <= colNum; col1++)
        {
            printf(" ");
        }


        colNum--;
        for (col2 = 0; col2 <= row; col2++)
        {
            if (col2 == 0 || col2 == row)
                printf("*");


            else
            {
                counter = counter + 1;
                if (counter == 5) {
                    printf(" ");
                    counter = 0;
                }
                else printf("$");
            }
                 
        }
        printf("\n");
    }


    


    getchar();
    getchar();
}

What should I fix?

I can not understand what result you want? By what laws should alternate dollars and spaces?

Sorry guys, I had a mistake in the triangle.. the spaces should be every 5 "$", so here's my fixed code:

Code:

# include <stdio.h>
# include <stdlib.h>


int main()
{

int t,spaceNum=0,d=0,counter=0,i, j, k, n;

printf("Enter triangle height\n");
scanf("%d", &n);
if (n < 2) return 0;
printf("Enter the number of $\n");
scanf("%d", &d);
printf("Enter number of spaces\n");
scanf("%d", &spaceNum);
printf("\n");
for (i = 0; i< n ; i++)
printf(" ");

printf("*\n");
for (i = 1; i<n-1 ; i++)
{
for (j = n - i; j>0; j--)
printf(" ");
printf("*");
for (k = 0; k<2 * i-1; k++)

if (k >= 1 || k<(2*i-1))
{
counter = counter + 1;
if (counter == d+1)
{
for (t = 1; t <= spaceNum; t++)
{
printf(" ");
}
counter = 0;
}
else printf("$");
}
printf("*\n");
}
printf(" ");
for (i = 1; i<=2* n-1 ; i++)
printf("*");

printf("\n");
printf("\n");

printf("The height of triangle is %d\n", n);
printf("The number of $ is %d\n", d );
printf("The number of space is %d\n", spaceNum);

getchar();
getchar();
}

Code:

for (k = 0; k<2 * i-1; k++) // Don't omit the curly braces.

if (k >= 1 || k<(2*i-1)) // This conditional expression is always true.