*

  ***

 *****

*******

 *****

  ***

   *

Press any key to continue

#include<stdio.h>

int main()

{

    int i,j,k=;

    for(i=;i<=;i++)

    {

        if(i<=)

        {    k--;

            for(j=;j<=k;j++)printf(" ");

            for(j=;j<*i;j++)printf("*");

            printf("\n");

        }

        else

        {   k++;

            for(j=;j<=k;j++)printf(" ");

            for(j=;j<(-k)*;j++)printf("*");

            printf("\n");

        }

    }

    return ;

}

#include<stdio.h>

int main()

{

    int i,j;

    for(i=;i<;i++)

    {

        for(j=;j<=-i;j++)printf(" ");

        for(j=;j<*i;j++)printf("*");

        printf("\n");

    }

    for(i=;i>;i--)

    {

        for(j=;j<=-i;j++)printf(" ");

        for(j=;j<*i;j++)printf("*");

        printf("\n");

    }

    return ;

}