Merge pull request #214 from AlgoLeadMe/62-tgyuuAn

tgyuuAn/DP/우수 마을.py

@@ -0,0 +1,32 @@
+import sys
+from collections import defaultdict
+
+sys.setrecursionlimit(10**6)
+
+def input(): return sys.stdin.readline().rstrip()
+
+N = int(input())
+town = [0]
+town.extend(list(map(int,input().split())))
+linked = defaultdict(set)
+
+for _ in range(N-1):
+    first, second = map(int,input().split())
+
+    linked[first].add(second)
+    linked[second].add(first)
+
+DP = [[0, town[n]] for n in range(N+1)]
+visited = set()
+
+def dfs(now):
+    visited.add(now)
+
+    for next in linked[now]:   
+        if next not in visited:
+            dfs(next)
+            DP[now][1] += DP[next][0]  
+            DP[now][0] += max(DP[next][0], DP[next][1])  
+
+dfs(1)
+print(max(DP[1][1], DP[1][0]))

tgyuuAn/README.md

@@ -66,4 +66,5 @@
 | 59차시 | 2024.06.03 |  다익스트라 + 이분 탐색  | <a href="https://www.acmicpc.net/problem/14942">개미</a> | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/207
 | 60차시 | 2024.06.07 |  그리디  | <a href="https://www.acmicpc.net/problem/14939">불 끄기</a> | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/209
 | 61차시 | 2024.06.20 |  크루스칼  | <a href="https://www.acmicpc.net/problem/1774">우주신과의 교감</a> | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/212
+| 62차시 | 2024.07.01 |  DP  | <a href="https://www.acmicpc.net/problem/1949">우수 마을</a> | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/214
 ---