From 75690d88f7cbe47bc2ee5c146fed249d80d52bc6 Mon Sep 17 00:00:00 2001
From: mhrooz <cxyoz@outlook.com>
Date: Sun, 2 Jun 2024 17:57:21 +0200
Subject: [PATCH] 433 bfs
---
433-240602-pass/main.py | 38 ++++++++++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
create mode 100644 433-240602-pass/main.py
diff --git a/433-240602-pass/main.py b/433-240602-pass/main.py
new file mode 100644
index 0000000..4df4041
--- /dev/null
+++ b/433-240602-pass/main.py
@@ -0,0 +1,38 @@
+class Solution:
+ def minMutation(self, startGene: str, endGene: str, bank: list[str]) -> int:
+ if endGene not in bank: return -1
+ que = []
+ front = -1
+ tail = -1
+ def push_back(que, front, tail, ele):
+ tail += 1
+ if tail >= len(que):
+ que.append(ele)
+ else:
+ que[tail] = ele
+ return tail
+ def pop(que, front ,tail):
+ front += 1
+ return (front , que[front])
+ tail = push_back(que,front,tail,(startGene,0))
+ def diff(str1, str2) -> int:
+ rlt = 0
+ for idx, ch in enumerate(str1):
+ if(str1[idx] != str2[idx]): rlt += 1
+ return rlt
+ rlt = 1e5
+ while front != tail:
+ (front, top_ele) = pop(que, front, tail)
+ step = top_ele[1]
+ string = top_ele[0]
+ if diff(string, endGene) == 0: return step
+ for s in bank:
+ diff_num = diff(s, string)
+ # print(diff_num)
+ if diff_num == 1:
+ tail = push_back(que, front, tail, (s, step + 1))
+ return -1
+
+sol = Solution()
+print(sol.minMutation("AACCGGTT","AACCGGTA",["AACCGGTA"]))
+print(sol.minMutation("AACCGGTT","AAACGGTA",["AACCGGTA","AACCGCTA","AAACGGTA"]))
\ No newline at end of file