C Program to Generate Equilateral Triangle Shape Pattern

Generating equilateral triangle shape pattern using stars in C programming language.

Equilateral Triangle Shape C Program

#include<stdio.h>

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

    printf("Enter number of lines: ");
    scanf("%d", &n);

    for(i=1;i<=n;i++)
    {
        for(j=1;j<=n-i;j++)
        {
            printf(" ");
        }
        for(j=1;j<=2*i-1;j++)
        {
            j==1||j==2*i-1||i==n?printf("*"):printf(" ");
        }
        printf("\n");
    }

    return 0;
}

Output of Above Program

Enter number of lines: 10

         *
        * *
       *   *
      *     *
     *       *
    *         *
   *           *
  *             *
 *               *
*******************