Print M patterns with C Language

                                                        

#include<stdio.h>

#include<conio.h>

void main()

{

                        int i,n,j;

                        printf("\t enter value of n=");

                        scanf("%d",&n);

                        printf("\n\n");

                        for(i=0;i<n;i++)

                        {

                                    for(j=0;j<2*n-1;j++)

                                    {

                                                if(j==0||j==2*n-2||(i<=n/2&&(j==2*i||j==(2*n-2)-2*i)))

                                                {

                                                             printf("*");

                                                }

                                                 else

                                                 {

                                                              printf(" ");

                                                 }

                                    }

                                     printf("\n");

              }

}