ABC168

We participated in AtCorder Beginner Contest 168. It was ABC's 3 questions AC. I'm using Python3.

A problem

Take out the rightmost number and divide it into cases.

N = input()
if N[-1] == '3':
    print('bon')
elif N[-1] == '0' or N[-1] == '1' or N[-1] == '6' or N[-1] == '8':
    print('pon')
else:
    print('hon') 

B problem

It is divided into cases according to the length of the character string, and if it is short, it is output as it is, and if it is long, it is omitted.

K = int(input())
S = input()
if len(S) <= K:
    print(S)
else:
    print(S[:K] + '...')

C problem

Find the minute speed of the long hand and the short hand, and find the angle (difference from the top) at H hours and M minutes. This gives the two sides and the angle between them, so the length of the other side is found by the cosine theorem.

import math
A, B, H, M = map(int,input().split())
T = 60 * H + M
a = (360 /60/ 12) * T
b = ((360 / 60) * T ) % 360
k = abs(a - b)
print(a, b, k)
if k > 180:
    kakudo = 360 - k
else:
    kakudo = k
X = A ** 2 + B **2 - 2 * A * B * math.cos(math.radians(kakudo)) #Cosine theorem
print(X ** (1/2))