代码 #!/usr/bin/env python # -*- coding: utf-8 -*- # author: a2htray # create date: 2023/3/25 """ PAT 乙级 1043 """ if __name__ == '__main__': line = input() nums = [0] * 6 chars = ['P', 'A', 'T', 'e', 's', 't'] for c in line: if c == 'P': nums[0] += 1 if c == 'A': nums[1] += 1 if c == 'T': nums[2] += 1 if c == 'e':...

代码 #!/usr/bin/env python # -*- coding: utf-8 -*- # author: a2htray # create date: 2023/3/25 """ PAT 乙级 1042 """ if __name__ == '__main__': line = input() stat = [0] * 26 for c in line: if ord('a') <= ord(c) <= ord('z'): stat[ord(c) - ord('a')] += 1 if ord('A') <= ord(c) <= ord('Z'): stat[ord(c) - ord('A')] += 1...

代码 #!/usr/bin/env python # -*- coding: utf-8 -*- # author: a2htray # create date: 2023/3/25 """ PAT 乙级 1041 """ if __name__ == '__main__': n = int(input()) student_dict = {} for _ in range(n): tokens = input().split(' ') student_dict[tokens[1]] = [tokens[0], tokens[2]] _ = input() nums = input().split(' ') for num in...

代码 #!/usr/bin/env python # -*- coding: utf-8 -*- # author: a2htray # create date: 2023/3/25 """ PAT 乙级 1039 """ if __name__ == '__main__': line = input() num_t = 0 num_at = 0 num_pat = 0 for i in range(len(line) - 1, -1, -1): if line[i] == 'T': num_t += 1 if num_t != 0 and line[i] == 'A': num_at += num_t if num_at !=...

代码 #!/usr/bin/env python # -*- coding: utf-8 -*- # author: a2htray # create date: 2023/3/25 """ PAT 乙级 1039 """ def color_stat(s): stat = {} for c in s: if c not in stat: stat[c] = 0 stat[c] = stat[c] + 1 return stat if __name__ == '__main__': line1 = input() line2 = input() stat1 = color_stat(line1) stat2 =...

今天在 git pull 时报了如下的错：

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
SHA256:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.
Please contact your system administrator.
Add correct host key in /Users/a2htray/.ssh/known_hosts to get rid of this message.
Offending RSA key in /Users/a2htray/.ssh/known_hosts:2
Host key for github.com has changed and you have requested strict checking.
Host key verification failed.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

导致无法拉取远程仓库的代码。

代码 #!/usr/bin/env python # -*- coding: utf-8 -*- # author: a2htray # create date: 2023/3/13 """ PAT 乙级 1038 """ if __name__ == '__main__': n = int(input()) scores = {} for score in input().split(' '): if score not in scores: scores[score] = 0 scores[score] += 1 counts = [] for score in input().split(' ')[1:]: if score...

代码 #!/usr/bin/env python # -*- coding: utf-8 -*- # author: a2htray # create date: 2023/3/13 """ PAT 乙级 1037 """ def get_gsk(s): return list(map(int, s.split('.'))) if __name__ == '__main__': gsk1, gsk2 = map(get_gsk, input().split(' ')) price1 = gsk1[0] * 17 * 29 + gsk1[1] * 29 + gsk1[2] price2 = gsk2[0] * 17 * 29 +...

代码 #!/usr/bin/env python # -*- coding: utf-8 -*- # author: a2htray # create date: 2023/3/13 """ PAT 乙级 1036 """ if __name__ == '__main__': tokens = input().split(' ') n = int(tokens[0]) c = tokens[1] row_num = str(1.0 * n / 2) if '.' in row_num: num, fraction = row_num.split('.') if 5 <= int(fraction[0]) <= 9: num =...

代码 #!/usr/bin/env python # -*- coding: utf-8 -*- # author: a2htray # create date: 2023/3/13 """ PAT 乙级 1033 """ if __name__ == '__main__': bad_keys = input() shift_bad = '+' in bad_keys for v in input(): if v in bad_keys or v.upper() in bad_keys: continue if shift_bad and ord('A') <= ord(v) <= ord('Z'): continue...