18-H0ngJu

H0ngJu/DFS/계란으로 계란치기.py

@@ -0,0 +1,39 @@
+import sys
+sys.setrecursionlimit(10**6)
+
+def input(): return sys.stdin.readline().rstrip()
+
+N = int(input())
+eggs = [list(map(int, input().split())) for _ in range(N)]
+
+def break_egg(idx):
+    cnt = 0
+
+    # idx가 넘어간 경우
+    if idx == N:
+        for i in range(N):
+            if eggs[i][0] <= 0:
+                cnt += 1
+        return cnt
+
+    if eggs[idx][0] <= 0: # 들고 있는 계란이 깨진 경우
+        return break_egg(idx+1)
+
+    broken = False
+    for j in range(N): # 계란 깨기
+        if j != idx and eggs[j][0] > 0:
+            broken = True
+            eggs[idx][0] -= eggs[j][1]
+            eggs[j][0] -= eggs[idx][1]
+
+            cnt = max(cnt, break_egg(idx+1))
+
+            eggs[idx][0] += eggs[j][1]
+            eggs[j][0] += eggs[idx][1]
+
+    if not broken:
+        return break_egg(idx+1)
+
+    return cnt
+
+print(break_egg(0))

H0ngJu/README.md

@@ -19,5 +19,6 @@
 | 15차시 | 2024.05.14 |  그리디  |                    [A와 B](https://www.acmicpc.net/problem/12904)                     | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/188 |
 | 16차시 | 2024.05.14 |   BFS    |               [뱀과 사다리 게임](https://www.acmicpc.net/problem/16928)               | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/191 |
 | 17차시 | 2024.05.22 |   BFS    |                   [적록색약](https://www.acmicpc.net/problem/10026)                   | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/195 |
+| 17차시 | 2024.05.26 |   DFS    |              [계란으로 계란치기](https://www.acmicpc.net/problem/16987)               | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/199 |
 
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