rhombus with 01 in c

output :

C program


#include<stdio.h>

int main()
{
    int i,j,r,c;
printf("enter number of column --");
scanf("%d",&r);

for(i=1;i<=r;i++)
{
     for(j=1;j<=r-i;j++)
     {
     printf(" ");
     }
     for(j=1;j<=i;j++)
{
           
            if(j % 2 == 1)
            {
                printf("0 ");
            }
            else
            {
                printf("1 ");
            }
        }
printf("\n");
}

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

    }
    for(j=1;j<=i;j++)
    {
        
            if(j % 2 == 1)
            {
                printf("0 ");
            }
            else
            {
                printf("1 ");
            }
    }
    printf("\n");
}

}

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