Python程序以蛇模式打印矩阵

给定一个 nxn 矩阵。在给定的矩阵中，您必须以蛇形模式打印矩阵的元素。

例子 ：

Input :mat[][] = { {10, 20, 30, 40},
                   {15, 25, 35, 45},
                   {27, 29, 37, 48},
                   {32, 33, 39, 50}};
              
Output : 10 20 30 40 45 35 25 15 27 29
         37 48 50 39 33 32 

Input :mat[][] = { {1, 2, 3},
                   {4, 5, 6},
                   {7, 8, 9}};
Output : 1 2 3 6 5 4 7 8 9

我们遍历所有行。对于每一行，我们检查它是偶数还是奇数。如果是偶数，我们从左到右打印，否则从右到左打印。

Python3

# Python 3 program to print
# matrix in snake order
M = 4
N = 4
  
def printf(mat):
    global M, N
      
    # Traverse through all rows
    for i in range(M):
          
        # If current row is
        # even, print from
        # left to right
        if i % 2 == 0:
            for j in range(N):
                print(str(mat[i][j]),
                          end = " ")
  
        # If current row is 
        # odd, print from
        # right to left
        else:
            for j in range(N - 1, -1, -1):
                print(str(mat[i][j]), 
                          end = " ")
  
# Driver code
mat = [[ 10, 20, 30, 40 ],
       [ 15, 25, 35, 45 ],
       [ 27, 29, 37, 48 ],
       [ 32, 33, 39, 50 ]]
  
printf(mat)
  
# This code is contributed
# by ChitraNayal

输出 ：

10 20 30 40 45 35 25 15 27 29 37 48 50 39 33 32 

请参阅完整文章以蛇模式打印矩阵以获取更多详细信息！