PROBLEM 19:

Write a C program that prints an equilateral triangle for a given n.
For n=3
*
**
***
**
*
For n=4
*
**
***
****
***
**

*
CODE:

#include<stdio.h>

main()

{

    int i,j,num;

    printf("Enter num");

    scanf("%d",&num);

    for(i=1;i<=num;i++)

    {

        for(j=1;j<=i;j++)

        {

            printf("*");

        }

        printf("\n");

    }

    for(i=num-1;i>=1;i--)

    {

        for(j=1;j<=i;j++)

        {

            printf("*");\

        }

        printf("\n");

    }

return 0;

}

Program Output:

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