Number Pattern Program in C - 15

/*
Write a program in C for Number Pattern Program
*/

#include <stdio.h>
int main()
{
  int i, j;
  for(i=1;i<=4;i++)
  {
    for(j=i;j>=1;j--)
    {
      printf("%d",j%2);
    }
    printf("\n");
  }
  return 0;
}