Column 1 has 1 points.

The second column has two points.

The point on the x axis is the second point.

There are three points in the third column.

The point on the X axis is 1+2+ 1 point.

. . . .

N columns have n points.

The point on the x axis is 1+2+. . +(n- 1)+ 1 point

The first n columns * * * have (1+2 ...+n) = n (n+1)/2 points.

Calculate the column where point 100 is located.

100 & lt； =n(n+ 1)/2

200 & lt=n(n+ 1)

n(n+ 1)>=200

N = 14 satisfies the minimum upper inequality.

So the focus is on the 14 column.

The former 13 column * * has13 *14/2 = 91.

The point 100 is on the column 14, and the position of 100-9 1 = 9 is calculated from bottom to top in this column, so the coordinate is (14,8).