用Python计算并输出杨辉三角形
时间: 2024-04-28 14:03:54 浏览: 11
好的,以下是Python代码实现杨辉三角的输出:
```python
def yang_hui_triangle(n):
res = []
for i in range(n):
row = [1] * (i + 1)
for j in range(1, i):
row[j] = res[i-1][j-1] + res[i-1][j]
res.append(row)
return res
n = int(input("请输入要计算的行数:"))
triangle = yang_hui_triangle(n)
for row in triangle:
print(' '.join([str(num) for num in row]))
```
输出结果如下:
```
请输入要计算的行数:6
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1
```
请问还有什么需要我回答的问题吗?
相关问题
Python计算并输出前十行杨辉三角形
以下是Python代码:
```python
def generate_next_row(row):
result = [1]
for i in range(len(row) - 1):
result.append(row[i] + row[i + 1])
result.append(1)
return result
def generate_pascal_triangle(num_rows):
pascal_triangle = []
curr_row = [1]
for i in range(num_rows):
pascal_triangle.append(curr_row)
curr_row = generate_next_row(curr_row)
return pascal_triangle
def print_pascal_triangle(num_rows):
pascal_triangle = generate_pascal_triangle(num_rows)
for row in pascal_triangle:
print(row)
print_pascal_triangle(10)
```
输出结果:
```
[1]
[1, 1]
[1, 2, 1]
[1, 3, 3, 1]
[1, 4, 6, 4, 1]
[1, 5, 10, 10, 5, 1]
[1, 6, 15, 20, 15, 6, 1]
[1, 7, 21, 35, 35, 21, 7, 1]
[1, 8, 28, 56, 70, 56, 28, 8, 1]
[1, 9, 36, 84, 126, 126, 84, 36, 9, 1]
```
Python输出杨辉三角形
好的,以下是Python代码输出杨辉三角形:
```
n = int(input("请输入行数:"))
# 初始化二维数组
triangle = [[0 for col in range(n)] for row in range(n)]
# 设置第一列的值为1
for i in range(n):
triangle[i][0] = 1
# 填充剩余的值
for i in range(1, n):
for j in range(1, i+1):
triangle[i][j] = triangle[i-1][j-1] + triangle[i-1][j]
# 输出杨辉三角形
for i in range(n):
for j in range(i+1):
print(triangle[i][j], end=" ")
print()
```