题解 | #DNA序列#
DNA序列
https://www.nowcoder.com/practice/e8480ed7501640709354db1cc4ffd42a
import sys inp = sys.stdin.readlines() s = inp[0].strip() n = int(inp[1].strip()) rate = 0 s_len = len(s) arr = [] for i in range(s_len-n+1): child = s[i:i+n] rate = child.count('C')+child.count('G') arr.append(rate) index = arr.index(max(arr)) print(s[index:index+n])