Python 实现 PTA 平台 基础编程题目集

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2019/3/11 8:20
# @Author  : cunyu
# @Site    : cunyu1943.github.io
# @File    : 6-1.py
# @Software: PyCharm
# 简单输出整数
# https://pintia.cn/problem-sets/14/problems/733
def PrintN(N):
  for i in range(1, N+1):
    print(i)
if __name__ == '__main__':
    number = int(input('输入一个正整数:'))
    PrintN(number)

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2019/3/11 8:50
# @Author  : cunyu
# @Site    : cunyu1943.github.io
# @File    : 6-2.py
# @Software: PyCharm
import math
# 多项式求值
# https://pintia.cn/problem-sets/14/problems/734
def f(n, a, x):
  result = 0
  for i in range(n+1):
    tmp = a[i] * pow(x, n)
    result += tmp
  return result
if __name__ == '__main__':
  n = int(input('输入n\n'))
  x = float(input('输入x\n'))
  a = []
  for i in range(n+1):
    a.append(float(input('输入a[{}]\n'.format(i))))
  print(f(n, a, x))

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2019/3/11 9:19
# @Author  : cunyu
# @Site    : cunyu1943.github.io
# @File    : 6-3.py
# @Software: PyCharm
# 简单求和
# https://pintia.cn/problem-sets/14/problems/735
def Sum(List, N):
  result = 0
  for i in List:
    result += i
  return result
if __name__ == '__main__':
  List = []
  N = int(input('输入元素个数\n'))
  for i in range(N):
    List.append(int(input('输入List[{}]\n'.format(i))))
  print('最后结果是:{} '.format(Sum(List, N)))

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2019/3/11 19:58
# @Author  : cunyu
# @Site    : cunyu1943.github.io
# @File    : 6-4.py
# @Software: PyCharm
# 求自定类型元素平均值
# https://pintia.cn/problem-sets/14/problems/736
def Average(S, N):
  total = 0
  for i in S:
    total += i
  avg = total / N
  return avg
if __name__ == '__main__':
  N = int(input('输入元素个数:\n'))
  S = []
for i in range(N):
  S.append(float(input('输入S[{}]: '.format(i))))
print('均值为: %.2f\n' % (Average(S, N)))

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2019/3/11 20:13
# @Author  : cunyu
# @Site    : cunyu1943.github.io
# @File    : 6-5.py
# @Software: PyCharm
# 求自定类型元素的最大值
# https://pintia.cn/problem-sets/14/problems/737
def Max(S, N):
  tmp = S[0]
  for i in range(1, N):
    if tmp < S[i]:
      tmp = S[i]
  return tmp
  # return max(S)
if __name__ == '__main__':
  N = int(input('输入元素个数:\n'))
  S = []
  for i in range(N):
    S.append(float(input('输入S[{}]: '.format(i))))
  print('Max is : %.2f' % Max(S, N))