Q3.c

#include<stdio.h>

int main()

{

int rows, cols,i,j,k;

printf("enter the number of rows:");

scanf("%d",&rows);

printf("enter the number of columns:");

scanf("%d",&cols);

k=1;

for (i=1;i<=rows;i++)

{

for (j=1;j<=cols;j++)

{

if(k==1)

{

printf("1");

}

else

{

printf("0");

}

k*=-1;

}

printf("\n");

}

return 0;

}