Python3解决棋盘覆盖问题的方法示例

def chess(tr,tc,pr,pc,size):
  global mark
  global table
  mark+=1
  count=mark
  if size==1:
    return
  half=size//2
  if pr<tr+half and pc<tc+half:
    chess(tr,tc,pr,pc,half)
  else:
    table[tr+half-1][tc+half-1]=count
    chess(tr,tc,tr+half-1,tc+half-1,half)
  if pr<tr+half and pc>=tc+half:
    chess(tr,tc+half,pr,pc,half)
  else:
    table[tr+half-1][tc+half]=count
    chess(tr,tc+half,tr+half-1,tc+half,half)
  if pr>=tr+half and pc<tc+half:
    chess(tr+half,tc,pr,pc,half)
  else:
    table[tr+half][tc+half-1]=count
    chess(tr+half,tc,tr+half,tc+half-1,half)
  if pr>=tr+half and pc>=tc+half:
    chess(tr+half,tc+half,pr,pc,half)
  else:
    table[tr+half][tc+half]=count
    chess(tr+half,tc+half,tr+half,tc+half,half)
def show(table):
  n=len(table)
  for i in range(n):
    for j in range(n):
      print(table[i][j],end=' ')
    print('')
mark=0
n=8
table=[[-1 for x in range(n)] for y in range(n)]
chess(0,0,2,2,n)
show(table)