#include<stdio.h>
#include<conio.h>
void
main()
{
int i,j,n,k;
clrscr();
printf("Enter the number fo row:-\n");
scanf("%d",&n);
printf("\nThe triangle is :-\n");
for(i=1;i<=n;i++)
{
if(i%2==0)
k=0;
else
k=1;
for(j=1;j<=i;j++)
{
printf("%d ",k);
if(k==0)
k=1;
else
k=0;
}
printf("\n");
}
getch();
}
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