[BOJ 7850] Circle Drawing
View as PDFGraphics libraries usually implement drawing of graphics primitives, like lines, polygons and circles. Your task is to write a program that draws circles.</p>
Graphic canvas is represented as an array of Xsize by Ysize pixels. Each pixel have a color ranged from 0 to 9. Initially all pixels have color 0. Pixels are thought of as small sqares with the side of length 1. A circle with center (xc, yc) and radius R is a set of pixels (x, y) satisfying the inequality (x - xc)2 + (y - yc)2 ≤ R2
To draw a circle, your program should set the color of all pixels in a set defined above to the color of the circle. After drawing N given circles, the program should output the color of all pixels of the canvas.
입력 형식
Input file contains numbers Xsize Ysize N followed by N sets of numbers xi yi Ri ci, describing the coordinates of center, radius and color of i-th circle.
출력 형식
Output file should contain Ysize lines of Xsize characters each, where i-th character of j-th line is a digit corresponding to color of the pixel (i, j).
예제 입력 1
5 5 1
2 2 1 3
예제 출력 1
00000
00300
03330
00300
00000
예제 입력 2
4 3 2
2 2 2 5
0 1 1 9
예제 출력 2
9050
9955
9555
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