代码
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
| #!/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 != 0 and line[i] == 'P':
num_pat += num_at
print(num_pat % 1000000007)
|
