# Top Down Right Triangle Printing In C

A triangle with one of its angle 90° is called right triangle. We shall now see how to print stars *, in right triangle shape, but upside down on x axis.

## Algorithm

Algorithm should look like this −

```Step 1 - Take number of rows to be printed, n.
Step 2 - Make outer iteration I from N to 1 times to print rows
Step 3 - Make inner iteration for J to I
Step 3 - Print "*" (star)
Step 4 - Print NEWLINE character after each inner iteration
Step 5 - Return
```

## Pseudocode

We can derive a pseudocode for the above mentioned algorithm, as follows −

```procedure topdownright_triangle

FOR I = N to 1 DO
FOR J = 1 to I DO
PRINT "*"
END FOR
PRINT NEWLINE
END FOR

end procedure
```

## Implementation

Implementation of right triangle in C is as follows −

```#include <stdio.h>

int main() {
int n, i, j;

n = 5;

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

printf("\n");
}

return 0;
}
```

The output should look like this −

```* * * * *
* * * *
* * *
* *
*
```
patterns_examples_in_c.htm 