Solve ABC036 A ~ C in Python

import math
a, b = map(int,input().split())

print(math.ceil(b/a))

n = int(input())
s = [list(input()) for _ in range(n)]

d = []
for i in range(n):
    c = []
    for j in range(n):
        c.append(s[j][i])
    c = c[::-1]
    d.append(c)

ans = ''
for i in range(n):
    s = ''.join(d[i])
    print(s)

n = int(input())
a = [int(input()) for _ in range(n)]
s = sorted(list(set(a))) #set
dic = {}

for i, e in enumerate(s): #You can minimize the number by using enumerate.
    dic[e] = i
for i in a:
    print(dic[i])

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