安工PTA自主智能体1-10题python

7-1 jmu-Java&Python-统计一段文字中的单词个数并按单词的字母顺序排序后输出

a = input()
b = []
while a != "!!!!!":
    a = a.split()
    for i in range(len(a)):
        b.append(a[i])
    a = input()
b = list(set(b))
b = sorted(b)
print(len(b))
if len(b) < 10:
    for i in range(len(b)):
        print(b[i])
else:
    for i in range(len(b)):
        if i < 10:
            print(b[i])

7-2 jmu-python-汇率兑换

a = input()
if a[0] == "R":
    b = eval(a[1:])
    print("$%.2f" % (b / 6.0))
elif a[0] == "$":
    b = eval(a[1:])
    print("R%.2f" % (b * 6.0))

7-3 jmu-python-回文数判断（5位数字）

a=input()
b=reversed(a)
if list(a)==list(b):
    print("yes")
else:
    print("no")

7-4 jmu-python-分段函数

a = eval(input())
if a < 3:
    print("f({:.2f})={:.2f}".format(a, 1.2))
elif a == 3:
    print("f({:.2f})={:.2f}".format(a, 10))
else:
    print("f({:.2f})={:.2f}".format(a, 2 * a + 1))

7-5 产生每位数字相同的n位数

a, b = map(lambda x: x.strip(), input().split(","))
print(a * eval(b))

7-6 计算 11+12+13+…+m

a = eval(input())
sum = 0
for i in range(11, a + 1):
    sum += i
print("sum = %d" % sum)

7-7 求出歌手的得分

a = eval(input())
b = list(map(int, input().split()))
b = sorted(b)
c = b[2:a - 2]
sum = 0
for i in range(len(c)):
    sum += c[i]
print("aver=%.2f" % (sum / (a - 4)))

7-8 计算有n个字符串中最长的字符串长度

n = eval(input())
str = ""
max = 0
for i in range(n):
    str = ""
    str += input().strip()
    if len(str) > max:
        max = len(str)
print("length=%d" % max)

7-9 统计单词的个数

a = input().split()
print("count = %d" % len(a))

7-10 删除字符

a=input()
a=a.strip()
c=input()
c=c.strip()
a = a.replace(c.upper(), '').replace(c.lower(), '')
print("result: {}".format(a))