snail

029_snail.py

@@ -0,0 +1,38 @@
+array = [[1,2,3],
+         [4,5,6],
+         [7,8,9]]
+
+def snail(array):
+    a = []
+    while array:
+        a.extend(list(array.pop(0)))
+        array = list(zip(*array))
+        array.reverse()
+    return a
+
+print(snail(array))
+
+# def snail(array):
+#     dizi= []
+#     n = len(array)
+#     while n>0:
+#         if array==[[]]: break
+#         for i in range(len(array)-1):
+#             if i == 0:
+#                 dizi.extend(array[i])
+#                 array.pop(i)
+#                 n -= 1
+#                 dizi.append(array[i][-1])
+#             else:
+#                 dizi.append(array[i][-1])
+#         for i in range(len(array)-1,-1,-1):
+#             dizi.append(array[-1][i])
+#         array.pop(-1)
+#         n -= 1
+#         for i in range(len(array)-1,-1,-1):
+#             dizi.append(array[i][0])
+#         array2=[]
+#         for i in array:
+#             array2.append(i[1:-1])
+#         array = array2
+#     return dizi