정올 1707 도형만들기2 - 달팽이 사각형

문제

예제

import sys

n = int(sys.stdin.readline())

square = [[0]*n for _ in range(n)]

num = 1

move = n

x = 0; y = -1

while move > 0:

    for i in range(move):

        y += 1

        square[x][y] = num

        num += 1

    move -= 1

    for i in range(move):

        x += 1

        square[x][y] = num

        num += 1

    for i in range(move):

        y -= 1

        square[x][y] = num

        num += 1

    move -= 1

    for i in range(move):

        x -= 1

        square[x][y] = num

        num += 1

for i in range(n):

    for j in range(n):

        print(square[i][j], end=' ')

    print()

정답