版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/AivenZhong/article/details/84112995
这题搞字符艺术，模拟平时画图那样画线然后填充颜色。垂直线与水平线相交点变‘+’加号，填充用广搜，用深搜也行，不过最后一个用例会爆栈，导致运行出错。广搜我自己测试100*100的矩阵，然后广搜100遍都很快，不用一秒出结果，但是提交上去只有90，最后一个用例运行超时。。。很迷。
python代码
def draw_line(x1, y1, x2, y2, matrix):
xlen = len(matrix)
ylen = len(matrix[0])
# 画线
if x1 == x2:
for y in range(min(y1, y2), max(y1, y2) + 1):
if matrix[x1][y] == '-' or (x1 - 1 >= 0 and matrix[x1 - 1][y] == '-') or (
x1 + 1 < xlen and matrix[x1 + 1][y] == '-'):
matrix[x1][y] = '+'
else:
matrix[x1][y] = '|'
elif y1 == y2:
for x in range(min(x1, x2), max(x1, x2) + 1):
if matrix[x][y1] == '|' or (y1 - 1 >= 0 and matrix[x][y1 - 1] == '|') or (
y1 + 1 < ylen and matrix[x][y1 + 1] == '|'):
matrix[x][y1] = '+'
else:
matrix[x][y1] = '-'
def fill_bfs(x, y, c, matrix):
# 填充
xlen = len(matrix)
ylen = len(matrix[0])
diret = [[1, 0], [-1, 0], [0, -1], [0, 1]]
q = []
if 0 <= x < xlen and \
0 <= y < ylen and \
matrix[x][y] != '|' and \
matrix[x][y] != '-' and \
matrix[x][y] != '+' and \
matrix[x][y] != c:
q.append([x, y])
matrix[x][y] = c
while q:
node = q.pop(0)
for d in diret:
tx, ty = node[0] + d[0], node[1] + d[1]
if 0 <= tx < xlen and \
0 <= ty < ylen and \
matrix[tx][ty] != '|' and \
matrix[tx][ty] != '-' and \
matrix[tx][ty] != '+' and \
matrix[tx][ty] != c:
q.append([tx, ty])
matrix[tx][ty] = c
# 主程序
m, n, q = map(int, input().split())
matrix = [['.' for i in range(n)] for j in range(m)]
for i in range(q):
op = input().split()
if op[0] == '0':
draw_line(int(op[1]), int(op[2]), int(op[3]), int(op[4]), matrix)
elif op[0] == '1':
fill_bfs(int(op[1]), int(op[2]), op[3], matrix)
# 打印顺时针翻转的图
for j in range(n)[::-1]:
for i in range(m):
print(matrix[i][j], end='')
print()