1 0 1 0
0 1 0
1 0
1
..................................
#include<stdio.h>
#include<conio.h>
void main()
void main()
{
int i, j, n;
cirscr();
printf("How many line: ");
scanf ("d", &n);
for (i=n; i>=1; i--)
int i, j, n;
cirscr();
printf("How many line: ");
scanf ("d", &n);
for (i=n; i>=1; i--)
{
for (j=1; j<=i; j++)
for (j=1; j<=i; j++)
printf("%4d",(i+j)%2);
printf("\n");
}
getch ();
getch ();
}
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